jackanapes — ONAD

jackanapes /ˈjakəˌnāps, ˈdʒækəˌneɪps

▸ noun

1 dated an impertinent person.

2 archaic a tame monkey.

– ORIGIN early 16th century (originally as Jack Napes): perhaps from a playful name for a tame ape, the initial n- by elision of an ape (compare with newt), and the final -s as in surnames such as Hobbes: applied to a person whose behavior resembled that of an ape.