epithet (n.)

"descriptive name for a person or thing," 1570s, from French épithète or directly from Latin epitheton (source also of Spanish epíteto, Portuguese epitheto, Italian epiteto), from Greek epitheton "an epithet; something added," noun use of adjective (neuter of epithetos) "attributed, added, assumed," from epitithenai "to add on," from epi "in addition" (see epi-) + tithenai "to put, to place" (from reduplicated form of PIE root *dhe- "to set, put"). Related: Epithetic; epithetical.