Probably inherited from Proto-Basque *angila, ultimately from Latin anguīlla (“eel”). This etymology, while being the most plausible, is problematic since the Latin term should have been borrowed into Proto-Basque as *angiLa, which would have yielded something akin to *aingila.
| Audio: | (file) |
aingira anim
| indefinite | singular | plural | |
|---|---|---|---|
| absolutive | aingira | aingira | aingirak |
| ergative | aingirak | aingirak | aingirek |
| dative | aingirari | aingirari | aingirei |
| genitive | aingiraren | aingiraren | aingiren |
| comitative | aingirarekin | aingirarekin | aingirekin |
| causative | aingirarengatik | aingirarengatik | aingirengatik |
| benefactive | aingirarentzat | aingirarentzat | aingirentzat |
| instrumental | aingiraz | aingiraz | aingirez |
| inessive | aingirarengan | aingirarengan | aingirengan |
| locative | — | — | — |
| allative | aingirarengana | aingirarengana | aingirengana |
| terminative | aingirarenganaino | aingirarenganaino | aingirenganaino |
| directive | aingirarenganantz | aingirarenganantz | aingirenganantz |
| destinative | aingirarenganako | aingirarenganako | aingirenganako |
| ablative | aingirarengandik | aingirarengandik | aingirengandik |
| partitive | aingirarik | — | — |
| prolative | aingiratzat | — | — |