Now employed in modern parlance to describe an irrefutable, strategic victory, “checkmate” is the term used in the game of chess to indicate the situation in which one player’s king is threatened with capture and no escape or defense is possible. Delivering checkmate is the ultimate goal in chess, and the player who forces it wins the game. The term “checkmate” is an alteration of the Persian phrase shah mat, which means what? Discuss
Source: The Free Dictionary