panache

Dash; verve.

A bunch of feathers or a plume, especially on a helmet.

In architecture, the triangular surface of a pendentive.

A plume as worn in a hat or helmet or in a woman's hair; especially, in medieval armor, a massive group of feathers set erect, often used as a heraldic bearing.

In zoology, a tuft, bunch, or cluster of hairs, feathers, or the like; a scopula; a panicle.