Hypertext Webster Gateway: "checkmated"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Checkmate \Check"mate\, 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.
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