Cockade = a rosette or knot of ribbons worn in a hat as a badge of office, or as part of a livery.
Originally associated with the French Revolution in the 18th century, the term cockade derives from the word 'cocarde', meaning 'cockscomb' in French, which referred to the shape of the cockade.
At the time, it was used mainly as a political and military symbol and was typically pinned on a hat or one side of a dress.
A cockade is a knot of ribbons, or other circular- or oval-shaped symbol of distinctive colours which is usually worn on a hat or cap.
The word cockade derives from the French cocarde, from Old French coquarde, feminine of coquard (vain, arrogant), from coc (cock), of imitative origin.