"formation of words or names by imitation of natural sounds; the naming of something by a reproduction of the sound made by it or a sound associated with it," 1570s, from Late Latin onomatopoeia, from Greek onomatopoiia "the making of a name or word" (in imitation of a sound associated with the thing being named), from onomatopoios, from onoma (genitive onomatos) "word, name" (from PIE root *no-men- "name") + a derivative of poiein "compose, make" (see poet).