I. ˈpē-ˌkäk noun
Etymology: Middle English pecok, from pe- (from Old English pēa peafowl, from Latin pavon-, pavo peacock) + cok cock
Date: 14th century
1. : a male peafowl distinguished by a crest of upright feathers and by greatly elongated loosely webbed upper tail coverts which are mostly tipped with iridescent spots and are erected and spread in a shimmering fan usually as a courtship display ; broadly : peafowl
2. : one making a proud display of oneself : show-off
• pea·cock·ish -ˌkä-kish adjective
• pea·cocky -kē adjective
II. intransitive verb
Date: 1818
: show off