COUNTERMARK

Etymology

Noun

countermark (plural countermarks)

A mark or token added to those already existing, as a security or proof.

(farriery) An artificial cavity made in the teeth of horses that have outgrown their natural mark, to disguise their age.

Verb

countermark (third-person singular simple present countermarks, present participle countermarking, simple past and past participle countermarked)

(transitive) To apply a countermark to.

Source: Wiktionary

Coun"ter*mark` (-mrk`), n.

1. A mark or token added to those already existing, in order to afford security or proof; as, an additional or special mark put upon a package of goods belonging to several persons, that it may not be opened except in the presence of all; a mark added to that of an artificer of gold or silver work by the Goldsmiths' Company of London, to attest the standard quality of the gold or silver; a mark added to an ancient coin or medal, to show either its change of value or that it was taken from an enemy.

2. (Far.)

Definition: An artificial cavity made in the teeth of horses that have outgrown their natural mark, to disguise their age.

Coun`ter*mark" (koun`tr-mrk"), v. t.

Definition: To apply a countenmark to; as, to countermark silverware; to countermark a horse's teeth.

Source: Webster’s Unabridged Dictionary 1913 Edition