The term trachy (Greek, Modern (1453-);: τραχύ), plural trachea (τραχέα), meaning "rough" or "uneven", was used to describe the cup-shaped (incorrectly often called "scyphate") Byzantine coins struck in the 11th–14th centuries. The term was properly applied to coins of electrum, billon, or copper, and not to the gold hyperpyra.
During the short lifespan of the feudal Crusader state, the Latin Empire of Constantinople from 1204-1261 also used the trachy.[1]