Tequiraca (Tekiráka), also known as Abishira, Aiwa (Aewa, Aʔɨwa), Ixignor, or Vacacocha, is an extinct language once spoken in Peru. In 1925 there were between 50 and 80 speakers in Puerto Elvira on Lake Vacacocha (connected with the Napo River). It is presumed extinct some time in the mid 20th century, though in 2008 two rememberers were found and 160 words and short sentences were recorded. Today, most ethnic Aiwa people have shifted to Kichwa and Spanish.

The little data available show it to not be closely related to other languages, though a distant connection to Canichana was proposed by Kaufman (1994).

Jolkesky (2016) also notes that there are lexical similarities with Taushiro, likely as a result of prehistoric contact within the circum-Marañón interaction sphere.

[:] is the verbalizer^{[clarification needed]}

Aiwa lexical items listed in Michael & Beier (2012):

Table comparing Aiwa (Tequiraca) with Waorani, Iquito, and Maijiki (mã́ḯhˈkì; Orejón) from Michael & Beier (2012):

Loukotka (1968) lists the following basic vocabulary items for Auishiri.