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khan

/kɑːn/ noun

In Latin: chānus, chanis Wiktionary

Origin

Via late Middle English can, chan from Old French chan, from Medieval Latin chanis, from Turkic *qan, contraction of *qaɣan. Cognate with Old Turkic 𐰴𐰍𐰣 (qaɣan), and Mongolian хаан (xaan), possibly from Rouran. Sense 1 (ruler in the Middle Ages) after Genghis Khan, from Middle Mongol ᠬᠠᠭᠠᠨ (qaɣan). Doublet of khagan.

From Wiktionary, via Kaikki.org (CC BY-SA)