Origin: 1275–1325; Middle English bra(u)ndisshen < Anglo-French, Middle French brandiss- (long stem of brandir, derivative of brand sword < Gmc). See brand, -ish2
mid-14c., from O.Fr. brandiss-, prp. stem of brandir "to flourish (a sword)" (12c.), from brant "blade of a sword, prow of a ship," of Frankish origin (see brand). Related: Brandished; brandishing.