Yaaku language

Yaaku (also known as Mukogodo, Mogogodo, Mukoquodo, Siegu, Yaakua, Ndorobo) is a moribund Afroasiatic language of the Cushitic branch, spoken in Kenya. Speakers are all older adults.

The classification of Yaaku within Cushitic is disputed, though it is usually placed somewhere within East Cushitic. It is lexicostatistically distinct, having been influenced by Maasai and perhaps also by an unknown substratum, but it shows closest resemblance with the Arboroid languages. Bender (2020) includes it as a member of Arboroid.