Ongan languages

Ongan, also called Angan, Jarawa–Onge, or ambiguously South Andamanese, is a language family which comprises two attested Andamanese languages spoken in the southern Andaman Islands.

The two known extant languages are:

The extinct language of the Jangil and that of the uncontacted Sentinelese may be Ongan, but there is no linguistic information for either of them.

The label 'Southern Andamanese languages' is also used for the closely related southern pair of the Great Andamanese languages.

The attested Andamanese languages fall into two clear families, Great Andamanese and Ongan.

The similarities between Great Andamanese and Ongan are mainly of a typological and morphological nature, with little demonstrated common vocabulary. Linguists, including long-range researchers such as Joseph Greenberg, have expressed doubts as to the validity of Andamanese as a family.

It has since been proposed (by Juliette Blevins 2007) that Ongan (but not Great Andamanese) is distantly related to Austronesian in a family called Austronesian–Ongan. However, the proposal of a genealogical connection between Austronesian and Ongan has not been well-received by other linguists. George Van Driem (2011) considers Blevins' evidence as "not compelling", although he leaves the possibility open that some resemblances could be the result of contact/borrowing, a position also held by Hoogervorst (2012). Robert Blust (2014) argues that Blevins' conclusions are not supported by her data, and that of her first 25 reconstructions, none are reproducible using the comparative method. Blust concludes that the grammatical comparison does not hold up, and also cites non-linguistic (such as cultural, archaeological, and biological) evidence against Blevins' hypothesis.

The two attested Ongan languages are relatively close, and the historical sound reconstruction mostly straightforward: