Kumis

Kumis, also spelled kumiss or koumiss in English (or kumys, see other transliterations and cognate words below under terminology and etymology) is a fermented dairy product traditionally made from mare's milk. The drink remains important to the peoples of the Central Asian steppes, of Huno-Bulgar, Turkic and Mongol origin: Bashkirs, Kalmyks, Kazakhs, Kyrgyz, Mongols, Uyghurs, and Yakuts.