designation (n.)

late 14c., "action of pointing out," from Old French designacion or directly from Latin designationem (nominative designatio) "a marking out, specification," noun of action from past participle stem of designare "mark out, devise, choose, designate, appoint," from de- "out" (see de-) + signare "to mark," from signum "identifying mark, sign" (see sign (n.)). Meaning "descriptive name" is from 1824.