Where does “chekmat” come from?

chekmat (Middle English) comes from Old French eschec mat, from Arabic شاه مات, from Persian شاه مات — checkmate.

Ancestry of “chekmat”, step by step

Step	Language	Word	Meaning
1	Old French	eschec mat	Alternative form of eschec et mat
2	Arabic	شاه مات	—
3	Persian	شاه مات	checkmate

chekmat — Etymology, Origin & Word History | Etymology Explorer