mock (v.) Look up mock at Dictionary.com
early 15c., "to deceive;" mid-15c. "make fun of," from Old French mocquer "deride, jeer," of unknown origin, perhaps from Vulgar Latin *muccare "to blow the nose" (as a derisive gesture), from Latin mucus; or possibly from Middle Dutch mocken "to mumble" or Middle Low German mucken "grumble." Or perhaps simply imitative of such speech. Related: Mocked; mocking; mockingly. Replaced Old English bysmerian. Sense of "imitating," as in mockingbird and mock turtle (1763), is from notion of derisive imitation.
mock (adj.) Look up mock at Dictionary.com
1540s, from mock, verb and noun. Mock-heroic is attested from 1711, describing a satirical use of a serious form; mock-turtle "calf's head dressed to resemble a turtle," is from 1763; as a kind of soup from 1783.
mock (n.) Look up mock at Dictionary.com
"derisive action or speech," early 15c., from mock (v.).