countermark

[ noun koun-ter-mahrk; verb koun-ter-mahrk ]

noun

1. Also called counterstamp. a sign or device stamped on a coin after its minting.

verb (used with object)

1. to stamp (a coin) with a countermark; counterstamp.

Word History and Origins

Origin of countermark¹

1495–1505; (noun) < Middle French contremarque, equivalent to contre counter- + marque mark ¹; (v.) < Middle French contremarquer, derivative of contremarque