Tatar

(noun) a member of the Mongolian people of central Asia who invaded Russia in the 13th century. Synonyms: Tartar, Mongol Tatar.

(noun) a member of the Turkic-speaking people living from the Volga to the Ural Mountains (the name has been attributed to many other groups).

(noun) the Turkic language spoken by the Tatar living from the Volga to the Ural Mountains.