Chagatai

[ chah-guh-tahy, chag-uh-, chah-guh-tahy, chag-uh- ]
/ ˌtʃɑ gəˈtaɪ, ˌtʃæg ə-, ˈtʃɑ gəˌtaɪ, ˈtʃæg ə- /

noun

a Turkic literary language of medieval Central Asia.
Also Jagatai, Jaghatai.