Meaning

noun strongbox where valuables can be safely kept

noun a ventilated or refrigerated cupboard for securing provisions from pests

noun contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse

originFrom Middle English sauf, safe, saf, saaf, from Old French sauf, saulf, salf (“safe”), from Latin salvus (“whole, safe”), from Proto-Italic *salwos, from Proto-Indo-European *solh₂- (“whole, every”). Displaced native Old English sicor (“secure, sure”).

Etymology from Wiktionary, CC BY-SA 3.0