panache

UK: /pəˈnæʃ/ US: /pəˈnæʃ, -ˈnɑʃ/ ,(pə nash′, -näsh′)

WordReference Random House Learner's Dictionary of American English © 2025

pa•nache /pəˈnæʃ, -ˈnɑʃ/   n. [uncountable]

1. a grand, somewhat showy manner:
   doffed his hat with panache.

WordReference Random House Unabridged Dictionary of American English © 2025

pa•nache  (pə nash′, -näsh′), n. 

1. a grand or flamboyant manner;
   verve;
   style;
   flair:
   The actor who would play Cyrano must have panache.
2. Clothing an ornamental plume of feathers, tassels, or the like, esp. one worn on a helmet or cap.
3. Architecture the surface of a pendentive.

• Late Latin pinnāculum, diminutive of pinna wing; identical in form with pinnāculum pinnacle
• early Italian pennachio
• Middle French
• variant (after French) of pennache 1545–55

Collins Concise English Dictionary © HarperCollins Publishers::

panache / pəˈnæʃ -ˈnɑːʃ/ noun

1. a dashing manner; style; swagger: she rides with panache
2. a feathered plume on a helmet

Etymology: 16th Century: via French from Old Italian pennacchio, from Late Latin pinnāculum feather, from Latin pinna feather; compare Latin pinnāculum pinnacle