holster, n. [D. holster; skin to AS. heolstor den, cave, fr. helan to conceal, and to Icel. hulstr case, Goth. hulistr covering, veil, huljan to cover. Hele to cover, Hell, and cf. Housing, Houss.].
A leather case for a pistol, carried by a horseman at the bow of his saddle, or worn on the person suspended from a belt or shoulder strap. [1913 Webster]