c. 1400, "emulation; act of copying," from Old French imitacion, from Latin imitationem (nominative imitatio) "a copying, imitation," noun of action from past participle stem of imitari "to copy, portray, imitate," from PIE *im-eto-, from root *aim- "to copy." Meaning "an artificial likeness" is from c. 1600. As an adjective, from 1840.
in rhetoric, "imitation or reproduction of the words of another," especially in order to represent his character, 1540s, from Greek mimēsis "imitation, representation, representation by art," from mimeisthai "to mimic, represent, imitate, portray," in art, "to express by means of imitation," from mimos "mime" (see mime (n.)). In zoology, "mimicry," by 1845.
"acting as a mime, practicing imitation, consisting of or resulting from mimicry," 1590s, from Latin mimicus, from Greek mimikos "of or pertaining to mimes," verbal adjective from mimeisthai "to mimic, represent, imitate, portray," in art, "to express by means of imitation," from mimos "mime" (see mime (n.)).
"act in imitation of, imitate or copy in speech or action," 1680s, from mimic (n.). Related: Mimicked; mimicking.