From Longman Dictionary of Contemporary Englishcockadecock‧ade /kɒˈkeɪd $ kɑː-/ noun [countable] DCa small piece of cloth used as a decoration on a hat to show rank, membership of a club etc
Examples from the Corpus
cockade• A lank forelock fell from beneath the hat bearing the tricolour cockade.Origin cockade (1600-1700) French cocarde, from cocard “too proud of yourself”, from coq “male chicken”, from Old French coc 