Chuvash

[ choo-vahsh; Russian chyoo-vahsh ]
/ tʃuˈvɑʃ; Russian tʃyuˈvɑʃ /

noun, plural Chu·vash·es, Chu·va·shi [choo-vah-shee; Russian chyoo-vah-shi, -vuh-shi] /tʃuˈvɑ ʃi; Russian tʃyuˈvɑ ʃɪ, -vʌˈʃɪ/, (especially collectively) Chu·vash for 1.

a member of a people of mixed Uralic and Altaic ancestry who live in the middle Volga basin, mainly in the Chuvash Autonomous Republic.
the language of the Chuvash, generally considered Turkic though markedly divergent from all other modern Turkic languages.

British Dictionary definitions for chuvash

Chuvash
/ (tʃʊˈvɑːʃ) /

noun

plural -vash or -vashes a Turkic ethnic people living chiefly in the middle Volga region of Russia
the language of this people, generally classed within the Turkic branch of the Altaic family