Her grandfather was decorated for gallantry at Vimy Ridge and went on to found the Canadian armored corps.
Felix is a good man, but his instincts toward decency— an act of gallantry on the Tube—eventually prove fatal for him.
They ennobled their race by their gallantry on that desperate occasion.
1590s, "fine appearance," from French galanterie (16c.), from Old French galant (see gallant). Meaning "gallant behavior" is from 1630s. Middle English had gallantness "merriment, gaiety, high living" (late 15c.).