Check″mate (–māt), v. t. [imp. & p. p.Checkmated; p. pr. & vb. n.Checkmating.] 1. (Chess) To check (an adversary's king) in such a manner that escape in impossible; to defeat (an adversary) by putting his king in check from which there is no escape.
2. To defeat completely; to terminate; to thwart.
To checkmate and control my just demands.
Ford.