panache (n.) Look up panache at Dictionary.com
1550s, "a tuft or plume of feathers," from Middle French pennache "tuft of feathers," from Italian pennaccio, from Late Latin pinnaculum "small wing, gable, peak" (see pinnacle). Figurative sense of "display, swagger" first recorded 1898 (in translation of "Cyrano de Bergerac"), from French.