checkmate

Etymology

From Middle English chekmat, from Old French eschec mat, from Arabic شَاه مَاتَ (šāh māta), from Classical Persian شاه مات (šāh māt, “the king [is] amazed”).

intj

1. (chess) Word called out by the victor when making a move that wins the game.
2. (by extension) Said when one has placed a person in a losing situation with no escape.

noun

1. The conclusive victory in a game of chess that occurs when an opponent's king is threatened with unavoidable capture.
2. (figurative, by extension) Any losing situation with no escape; utter defeat.

verb

1. (transitive, chess) To put the king of an opponent into checkmate.
   That jerk checkmated me in four moves!
2. (transitive, by extension) To place in a losing situation that has no escape.