Meaning

verb cover with a protective sheathing

verb enclose with a sheath

verb plunge or bury (a knife or sword) in flesh

originFrom Late Middle English shethen (“to put (a sword or knife) into a sheath, sheathe; to provide with a sheath; (figuratively) to have sexual intercourse”) [and other forms], then: * probably from Old English *scēaþian; or * possibly from Middle English sheth, shethe (“holder for a sword, knife, etc., scabbard, sheath”) [and other forms] + -en (suffix forming the infinitive of verbs). Sheth(e) is…

Etymology from Wiktionary, CC BY-SA 3.0