Meaning

noun a sheath (usually leather) for carrying a handgun

noun a belt with loops or slots for carrying small hand tools

originFrom Dutch holster (“pistol-case, holster”), from Middle Low German holster, from Old Saxon *holster, ultimately from Proto-Germanic *hulastrą, *hulistrą (“hull, case, covering”). Cognate with Old English heolstor (“a covering, veil, hiding-place”), Danish hylster (“pistol case, envelope”), Icelandic hulstur (“sheath”), Gothic 𐌷𐌿𐌻𐌹𐍃𐍄𐍂 (hulistr, “covering”). Compare German Halfter (“pistol case”).…

Etymology from Wiktionary, CC BY-SA 3.0