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Ono (axe)
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Ono (斧) (historically wono, をの) or masakari[1] is the Japanese word for "axe", and is used to describe various tools of similar structure. As with axes in other cultures, ono are sometimes employed as weapons. Many existing examples of this particular weapon are associated with the sōhei (warrior monks) or yamabushi,[1] who also adapt other agricultural tools as weapons, although samurai are also pictured as using ono in woodblock prints. Ono that were specifically designed for military use are of extreme rarity. The weapon version of the ono is described as having "a very large head with a very convex cutting edge and a large scroll-shaped peen opposite it. It has a sheath covering only the edge of the blade. The entire length is nearly 6 ft (180 cm)".[1]
References
[edit]- ^ a b c Ratti, Oscar; Westbrook, Adele (1991). Secrets of the Samurai; A Survey of the Martial Arts of Feudal Japan. C. E. Tuttle. p. 322. ISBN 978-0-8048-1684-7.
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Ono (axe)
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Characterized by a thin, wedge-shaped steel head with a rectangular socket for securing a wooden handle, the ono typically measures around 96 mm in width and is beveled on both sides for effective cutting.[1]
With origins tracing back to ancient times, including stone axes from the Jōmon period (c. 14,000–300 BCE), the ono has metal examples documented from the Yayoi period (c. 300 BCE–300 CE) onward, such as a late 19th-century artifact from Japan's agrarian society—where over 80% of the population were farmers relying on such implements for daily labor—reflecting the nation's emphasis on precision craftsmanship in tools.[1][2]
In martial contexts, the ono evolved into a formidable battle axe, often nearly six feet in length with a large, convex-edged head opposite a scroll-shaped peen, and was primarily associated with warrior monks known as yamabushi and temple guardians (sōhei), who employed it in close-quarters combat alongside techniques derived from staff and polearm arts.[3]
Less favored by mainstream samurai (bushi) compared to swords or spears due to its weight and smashing nature, the ono nonetheless represented an important, if niche, element in the evolution of Japanese martial traditions (bujutsu) from earlier historical periods.[3]
Variants like the masakari (battle axe) and fuetsu highlight its adaptability, with iron and steel examples showcasing fine tempering and workmanship preserved in museums alongside ancient stone predecessors (raifu, or thunder axes, from prehistoric thunderstorms).[3][2]
Terminology
Etymology
The Japanese term for "axe," ono (斧), originates from Old Japanese, where it was pronounced as wono (をの). This historical pronunciation is derived from Proto-Japonic wənə, and appears in early texts such as the Man'yōshū (c. 759 CE) logographically as 斧, and phonetically in the Nihon Ryōiki (c. 801 CE) with man'yōgana spelling 乎乃. By the Heian period (794–1185 CE), the pronunciation had shifted to the modern ono (おの), reflecting broader phonological changes in the language, while the term retained its core meaning for cutting tools.[4] The kanji 斧, adopted from Chinese to represent ono, is a phono-semantic compound character. It combines the phonetic element 父 (fu, Old Chinese paʔ, meaning "father") with the semantic radical 斤 (jīn, depicting an axe or halberd blade). The radical 斤 itself derives from ancient pictographs illustrating a simple axe head, symbolizing chopping or cutting implements with a handle and edge. This structure underscores the character's evolution from visual depictions of the tool's form in early Chinese script, introduced to Japan around the 5th–6th centuries CE.[5] Old Japanese significantly shaped tool nomenclature, integrating native pronunciations with imported Chinese characters to denote everyday implements like axes. This linguistic fusion is evident in Heian-period literature, where ono appears in prose and poetry to evoke imagery of woodworking or natural forces. Such usage highlights the term's enduring role in literary expressions of craftsmanship and mythology, without altering its fundamental etymological roots. The word ono shares occasional synonymy with masakari (鉞), another term for axe-like tools.[4]Related Terms
In Japanese terminology, the masakari (鉞) denotes a broad or battle axe, frequently associated with ceremonial or martial applications, distinguishing it from the more utilitarian ono while sharing structural similarities as a heavy chopping tool. Other variants include the fusō (斧槍), a hybrid spear-axe known as an ono-yari, which combines the axe's blade with a spear point for polearm use, and the fuetsu (斧鉞), referring to battle-axe forms that blend ax and adze-like features for cutting and shaving. The nata, a lighter machete-style chopper with a rectangular blade, is sometimes misclassified as an ono due to its chopping role but serves distinct functions in gardening and brush clearing, lacking the wedge shape of traditional axes. Historical shifts in the 16th-17th centuries saw the emergence of terms like onoyari for polearm adaptations of the axe, reflecting adaptations for warfare amid the Sengoku and early Edo eras.History
Ancient and Medieval Origins
The earliest precursors to the ono axe in Japan trace back to the Jōmon period (c. 14,000–300 BCE), where polished stone axes served as essential tools for hunter-gatherers, primarily used for felling small trees, shaping wood, and excavating root vegetables like yams and kudzu.[6] These ground stone implements, often hafted to wooden handles, represent some of the oldest evidence of woodworking technology in the archipelago, with archaeological finds from sites like Sannai-Maruyama highlighting their role in daily resource procurement.[6] During the Yayoi period (c. 300 BCE–300 CE), the transition to wet-rice agriculture brought advancements in axe technology, including quadrangular stone axes and plano-convex bronze adzes that facilitated the clearing of forested land for paddies and the crafting of wooden farming tools.[7] Iron axes emerged by the Kofun period (c. 250–538 CE), marking a significant evolution as continental influences from Korea and China introduced bloomery smelting techniques, enabling more durable blades for heavy forestry and construction tasks.[8] Excavations at kofun burial mounds, such as Nonaka Kofun and Hazaike Kofun, have yielded iron axe heads alongside other tools, underscoring their practical utility in an increasingly stratified society.[9] Around the 5th to 7th centuries CE, during the late Kofun and early Asuka periods, Chinese agricultural influences—transmitted via diplomatic exchanges and immigrant craftsmen—adapted basic iron axes for specialized forestry work, transforming them into versatile tools suited to Japan's dense woodlands and aiding in land clearance for expanding settlements.[8] The earliest textual references to the ono appear in 8th-century chronicles like the Nihon Shoki (completed 720 CE), where axes are described in contexts of tree felling for imperial construction projects and agricultural labor, such as marking sturdy timber for palace building or stirring earth in rituals. In the medieval period, from the Heian (794–1185 CE) to Kamakura (1185–1333 CE) eras, the ono was integral to large-scale temple and architectural construction projects, such as those at Enryaku-ji on Mount Hiei. This period solidified the ono's status as a foundational implement in Japan's architectural and religious landscape, bridging practical labor with emerging warrior traditions.Feudal and Edo Periods
During the Muromachi and Sengoku periods (1336–1603 CE), the ono axe saw increased adoption among samurai and yamabushi (mountain ascetics) for siege warfare, though dedicated battle variants remained rare and were often adaptations of carpentry tools. Warrior monks known as sōhei and yamabushi frequently employed ono in conflicts, leveraging its heavy, convex blade to breach gates, barricades, and shields during assaults on fortifications.[10][11] A notable 14th-century example, the Nyūbu-no-ono, features a forged iron head with heart-shaped openwork and was used by yamabushi for both practical path-clearing in Shugendō rituals and symbolic warfare purposes, highlighting its dual role in ascetic and martial contexts.[10] Samurai inventories, such as those from the Shimazu clan during the Ryukyu invasions, document ono alongside other polearms for percussive attacks against armored foes.[11] Socially, the ono was initially restricted to peasants for agricultural and forestry tasks, as well as monks for ritual mountaineering, reflecting its origins as a commoner's implement in a stratified feudal society where samurai favored swords and spears. Over time, samurai gained access through tool adaptations, incorporating ono into their arsenals for specialized siege roles, as evidenced by 14th-century accounts of warriors like Akamatsu Ujinori using axes to shatter helmets in battle.[11][12] This adaptation blurred class lines during the chaotic Sengoku era, when practical utility trumped traditional weapon hierarchies. Surviving artifacts from this period, including the Nyūbu-no-ono preserved at the Nara National Museum, underscore the ono's transition from mundane tool to occasional battlefield asset.[10] In the Edo period (1603–1868 CE), the ono shifted predominantly to a carpentry tool amid prolonged peace under the Tokugawa shogunate, with its military applications declining sharply due to the proliferation of gunpowder weapons and strict weapon controls. Carpenters used ono variants like yoki (felling axes) and masakari (broadaxes) for hewing timber in urban construction and castle maintenance, such as repairing wooden joints in structures like Osaka Castle's gates.[13] This era's emphasis on efficiency in woodworking led to refined designs for large-scale projects, including temple and castle restorations, where axes prepared logs before finer tools like saws took over.[14] Edo-period woodblock prints occasionally depict exaggerated ono wielded by samurai on horseback, but these were largely symbolic, as actual weapon use waned in favor of administrative and infrastructural roles.[12]Design and Construction
Materials and Forging
The blades of traditional Japanese ono axes, particularly those used in carpentry, are typically constructed from laminated steel to balance hardness and toughness. The cutting edge is made from carbon steel with approximately 0.45% carbon content, while the body consists of softer iron layers that prevent brittleness and cracking under impact.[15][16] This warikomi (3-layer) lamination technique ensures the edge retains sharpness for precise woodworking while the outer layers provide resilience.[15] Forging of ono blades is a handcrafted process performed by skilled blacksmiths, often at workshops like Mizuno Seisakujo in Niigata Prefecture. The high-carbon edge steel is forge-welded between the softer iron layers under heat, followed by repeated hammering to bond the materials and shape the blade; this may involve 10-15 folds in traditional methods to refine the structure and distribute carbon evenly for enhanced strength.[16][17] The edge is then ground to a convex profile, promoting durability and reducing the risk of chipping during use on hardwoods.[15] Distinctive design elements include a flat peen on the reverse side, optimized for hammering tasks without damaging the tool, and a bearded lower blade that extends downward for improved leverage in woodworking operations like shaving and hollowing.[18] These features enhance the ono's versatility as a multi-purpose tool. Historically, ono construction evolved from simple wrought iron in medieval periods, as seen in 17th-century examples used by mountain priests, to more refined laminated steels by the Edo period (1603–1868), reflecting advances in Japanese metallurgy that prioritized layered composites for tool longevity.[19] This progression paralleled broader developments in ironworking, where early imports gave way to domestic forging techniques.[8]Handle and Assembly
The handles of the ono axe are traditionally crafted from white oak, valued for its density, straight grain, and resistance to splitting under impact.[20] This wood provides durability and a comfortable grip, with the handle often featuring an oval cross-section to enhance ergonomics and prevent slippage during use.[21] For hand-held versions used in carpentry, handles typically measure 12 to 14 inches in length, allowing precise control for tasks like hewing and trimming.[18] Longer pole-style handles, extending up to several feet, are employed in variants for broader swings, shifting the balance point toward the head for greater leverage in heavy chopping.[15] Assembly involves inserting the handle into the axe head's eye socket, which is secured through a wedged system for a tight fit. A wooden wedge is first driven into a notch at the handle's top to expand it laterally, followed by a metal wedge inserted at a 60-90 degree angle to lock the assembly and prevent loosening during repeated strikes; waterproof glue may also be applied for added stability.[20] This method allows for replaceable handles, facilitating field repairs by removing the wedges and pins if present, which is particularly useful in traditional Japanese woodworking where tools endure demanding conditions.[22] The curved profile of the handle further aids assembly alignment and promotes efficient swing mechanics, reducing strain on the user by guiding natural arm motion.[23] Maintenance of the ono handle emphasizes preservation of the wood and secure attachment to ensure longevity. Regular oiling with linseed or tung oil protects the oak from drying and cracking, applied after cleaning with fine steel wool and turpentine to remove dirt or sap.[24] The blade is sharpened using Japanese waterstones for a keen edge, a process that maintains the tool's balance without altering the handle's ergonomic curve. Shorter handles on tool variants provide close-quarters control, while longer ones on weapon forms offer extended reach and momentum, though both require periodic wedge checks to sustain performance.[20]Types and Variations
Carpentry Axes
The standard carpenter's ono, a versatile tool in Japanese woodworking, features a bearded blade design that allows for closer cutting to the wood surface and better control during hewing and splitting tasks.[25] This axe typically has a head weighing 2 to 3 pounds (0.9 to 1.4 kg), forged from laminated high-carbon steel backed with softer iron to enhance edge retention and durability under repeated impacts.[25] The bearded shape, with its hooked lower edge, facilitates shaving thin slices from timber and prevents the blade from binding in the cut.[25] The kiwari ono serves as a specialized lighter splitting axe for forestry and log preparation, with a head weight of approximately 1.5 kg (3.3 lb) and a handle often around 80 cm to provide leverage for driving the narrow, thick blade into wood fibers.[26] Its design emphasizes a steep bevel for efficient splitting of logs without excessive rebound, making it suitable for processing larger timber in outdoor settings.[15] Compared to broader carpenter's variants, the kiwari ono's reduced weight and extended handle improve swing momentum for prolonged use in rough terrain.[15] The bakin represents a compact hatchet variant of the ono, weighing under 1 lb (450 g) for the head and featuring a short handle of about 30 to 36 cm, prioritizing portability for fine trimming and detail work on site.[27] Its bearded blade, often laminated for sharpness, differs from full-sized onos in scale and balance, allowing one-handed operation for tasks like notching small branches or refining edges without the bulk of larger models.[15] This portability enables carpenters to carry it easily in tool belts during mobile construction.[28] In joinery applications, the ono excels in precision timber framing for traditional structures such as temples and homes, where its controlled strikes shape mortise-and-tenon joints and square beams for interlocking assemblies.[25] The bearded design aids in creating clean, accurate cuts essential for the tight fits required in earthquake-resistant wooden architecture.[18]Battle Axes
Battle axes represent militarized adaptations of the traditional ono, transforming the utilitarian tool into specialized weapons for combat, though they remained relatively uncommon among elite samurai arsenals compared to swords and spears. These variants, such as the masakari and fuetsu, featured heavier, reinforced heads designed for breaching armor and structures, with convex cutting edges optimized for powerful chopping strikes rather than precise woodworking. Unlike carpentry onos, which often included bearded blades for hooking and leverage, battle versions typically lacked such features to facilitate thrusting and sweeping motions in close-quarters fighting. Their scarcity in samurai inventories stemmed from a cultural preference for more versatile polearms like the naginata, relegating axes primarily to warrior monks (yamabushi) and ashigaru infantry during the Sengoku period (1467–1603).[11] The masakari, a prominent heavy war axe, exemplified these adaptations, forged from steel for durability against armored opponents. Mounted on polearms extending up to 6 feet (1.8 m), it allowed for dynamic, two-handed swings effective in sieges and dense melee, as documented in feudal martial treatises. Examples from 16th-century arsenals, such as those preserved in Edo-period collections, highlight combat-specific reinforcements. This design prioritized raw impact over finesse, distinguishing it from lighter tool variants by its increased scale.[29] Another rare variant, the onoyari (also known as onosu yari or ken'iri masakari), combined the ono blade with an extended spear-like spike, creating a hybrid polearm for thrusting and slashing. Primarily ceremonial in courtly or ritual contexts, functional versions saw limited use in sieges for breaching gates or engaging at distance, with the spike enabling armor-piercing jabs alongside the axe's chopping power. These weapons, often elaborately decorated with inscriptions or inlays, appear in historical records from the Muromachi period (1336–1573), underscoring their dual role as symbols of authority and practical arms in non-standard warfare. Their hybrid form further highlighted the ono’s evolution from tool to battlefield implement, though production remained artisanal and infrequent.[11][12]Uses
In Traditional Crafts
The ono has been integral to Japanese forestry and carpentry, particularly in felling and hewing large cedar (sugi) logs essential for temple construction. The kiwari ono, a specialized splitting axe with grooved cheeks to prevent sticking in wood fibers, was employed to process sugi timber sourced from regions like Kitayama near Kyoto, where these logs were rounded and prepared for use in traditional buildings such as tearooms and temples.[26][30] In Kyoto's miyadaiku carpentry traditions, focused on shrine and temple joinery, the kiwari ono facilitated initial rough hewing of logs into beams, ensuring the modular proportions (kiwari system) required for post-and-beam structures that have endured for centuries.[31][32] In joinery tasks, the bearded ono variant, characterized by its hooked lower blade edge, excelled at shaping mortise-and-tenon joints by allowing precise paring and trimming near the handle for controlled cuts. This tool's design enabled carpenters to refine wooden components without metal fasteners, a hallmark of Japanese woodworking that emphasizes interlocking joints for seismic resilience. During post-World War II reconstruction, when imported materials were scarce, traditional ono use surged in rebuilding efforts, as miyadaiku carpenters relied on these axes to process local timber for homes and public structures, preserving cultural techniques amid economic hardship.[18][33] Cultural techniques involving the ono often integrated it sequentially with the chona adze in wood processing, where the axe handled initial felling and rough shaping, followed by the adze for smoothing surfaces to achieve the textured finishes prized in temple architecture. This workflow reflects traditional miyadaiku practices in temple repairs, such as those at Horyu-ji under leaders like Tsunekazu Nishioka, employing hand tools to restore cedar elements without nails and maintain structural integrity through precise hewing and adzing.[34][35][36] Economically, the ono was indispensable for daimyo estates, where it supported large-scale forestry operations to supply timber for castles and manors, contributing to the feudal lords' wealth measured in koku (rice equivalents) derived from land productivity. For peasant farmers, comprising over 80% of the population in agrarian Edo-period Japan, the ono served as a vital multipurpose tool in clearing land, felling trees for fuel and tools, and maintaining rice fields, bolstering household economies in a system where agricultural output funded samurai stipends.[37][38][39] As of the 21st century, ono variants continue to be used by miyadaiku carpenters in the maintenance and restoration of cultural heritage sites, preserving traditional techniques in modern contexts.[40]In Warfare and Siege
The ono, often adapted as the masakari battle axe, played a niche role in feudal Japanese warfare, particularly in siege operations where its robust design facilitated breaching wooden gates and barricades. Warrior monks known as sōhei utilized these axes during conflicts in the 12th and 14th centuries, leveraging their weight for destructive tasks against fortifications, as documented in historical accounts of monastic military involvement. Similarly, yamabushi mountain ascetics employed masakari variants for close-quarters defense in rugged terrain, clearing obstacles and engaging in melee during defensive stands, a tactic suited to their ascetic training and environmental expertise.[11][41] In ashigaru foot soldier units, the ono served more prominently in engineering capacities during sieges, such as dismantling enemy barriers or preparing assault paths, reflecting its origins as a carpentry tool repurposed for military logistics. For instance, inventories from the Shimazu clan's Ryukyu Invasion in the early 17th century record masakari among troop equipment for such utilitarian roles. However, the axe's adoption remained limited; samurai favored swords for their precision and polearms like the naginata or yari for superior reach and speed in open combat, rendering the heavy, less maneuverable ono secondary at best.[11][42] Authentic preserved examples of battle-oriented onos are rare, with few verified from feudal periods and most surviving artifacts in museum collections being ritual or ceremonial variants rather than field weapons, underscoring the ono's marginal status in martial history.[11]Cultural and Modern Aspects
In Martial Arts
The ono, a traditional Japanese battle axe, finds integration within certain classical martial arts systems, notably the Shinden Fudo Ryu, one of the nine ryu-ha comprising the Bujinkan Budo Taijutsu curriculum. In this school, the ono is employed as a long-shafted weapon for dakentaijutsu (striking body techniques), complementing unarmed methods to deliver powerful blows and control adversaries on the battlefield.[43][44] Practitioners train with the ono alongside other polearms like the yari (spear) and otsuchi (war hammer), emphasizing its role in dynamic engagements that blend offense and defense.[45] Techniques in Shinden Fudo Ryu and broader Bujinkan practice focus on fluid, natural movements adapted from naginatajutsu and jojutsu (staff arts), including whirling swings at varying heights to target multiple opponents or structures.[3] Overhead chops exploit the axe's weight for penetrating strikes, while the reverse poll—often featuring a hooked or spiked "beard"—enables disarms by catching and redirecting enemy weapons or limbs.[11] These methods are practiced in paired forms (kumite), sometimes incorporating the naginata for complementary long-range control and close-quarters hooking maneuvers, fostering adaptability in simulated combat scenarios.[3] Historically, the ono featured in the training of sōhei, the warrior monks who defended Buddhist temples, where curricula prioritized pole weapons for both offensive raids and defensive formations.[3] These militant monks, including yamabushi ascetics, wielded the ono in whirling patterns to breach barriers or engage foes, drawing from shared doctrinal roots with naginata traditions.[3] Although less emphasized in modern transmissions, occasional seminars within Bujinkan dojos revive these applications, maintaining the weapon's doctrinal place despite its rarity in contemporary practice.[45][46] Twentieth-century documentation, such as in Secrets of the Samurai: A Survey of the Martial Arts of Feudal Japan (1991 edition), elucidates the ono's tactical employment, highlighting specialized grips for leverage during swings and balanced stances that align with the body's natural posture for blocking or countering.[3] Earlier works by Bujinkan sōke Masaaki Hatsumi, including Ninjutsu: History and Tradition, further reference the axe's integration into ninjutsu striking forms, underscoring its utility in historical temple defense and skirmishes.[47]Contemporary Usage and Preservation
In contemporary Japanese carpentry, hand-forged ono axes continue to be produced by skilled blacksmiths in Miki City, Hyogo Prefecture, a historic center for toolmaking since the Edo period.[48][49] These artisans employ traditional lamination techniques with high-carbon steel edges backed by softer iron to create durable blades suited for hewing and rough shaping. Such ono variants, including the general-purpose carpenter's ono and the larger masakari broadaxe, remain integral to daiku (master carpenter) practices in timber-framed construction, particularly for UNESCO-recognized intangible cultural heritage like sukiya-style architecture, which emphasizes precise joinery without nails.[50][51] Preservation efforts for the ono focus on safeguarding both artifacts and techniques amid modernization. Institutions like the Takenaka Carpentry Tools Museum in Kobe house over 30,000 items, including axes and related implements, to document the evolution of Japanese woodworking heritage since its founding in 1984.[52] The Miki Municipal Hardware Museum similarly exhibits traditional metalworking tools, highlighting blacksmithing methods used in ono production and their role in regional crafts.[53] Post-World War II restoration techniques have emphasized non-invasive conservation, such as disassembly and reassembly of wooden structures using original tools like the ono, as outlined in training programs by the Nara Cultural Properties Research Institute, which revived skills for timber preservation after wartime damage.[54] Globally, the ono has inspired adaptations for bushcraft and outdoor pursuits, with replicas blending traditional designs and modern materials. The Infinity Axes Ono 2.0, forged from 4140 steel and heat-treated to 55-58 Rockwell hardness, replicates the Japanese axe's broad head for chopping and splitting in Western wilderness settings.[22] Similarly, the Silky Ono hatchet, with its stainless steel blade and rubber handle, serves as a lightweight multi-tool for trail clearing and small timber processing.[55] The axe's form gained further visibility through media, notably in the 2020 episode of Forged in Fire (Season 7, Episode 33), where competitors recreated a historical samurai ono pole axe, drawing attention to its balance and cutting efficiency.[56] The ono faces challenges from the widespread adoption of power tools, which has led to a decline in traditional hand-tool usage among Japanese carpenters since the mid-20th century.[57] Mechanized lumbering and electric saws have reduced demand for manual hewing, contributing to fewer apprentices in daiku lineages.[58] However, a revival has emerged in eco-forestry initiatives since the 2000s, driven by sustainable harvesting practices that favor low-impact tools like the ono to minimize environmental disruption in managed forests.[59] This resurgence aligns with growing international interest in artisanal woodworking, sustaining small-scale production and cultural workshops.[60]References
- https://en.wikisource.org/wiki/The_Thunder-Weapon_in_Ancient_Japan
- https://en.wiktionary.org/wiki/%E6%96%A7#Japanese
- https://en.wiktionary.org/wiki/%E6%96%A7#Chinese