Meaning

adjective free from dirt or impurities; or having clean habits

verb make clean by removing dirt, filth, or unwanted substances from

noun a weightlift in which the barbell is lifted to shoulder height and then jerked overhead

originFrom Middle English clene, clane, from Old English clǣne (“clean, pure”), from Proto-West Germanic *klainī (“shining, fine, splendid, tender”), perhaps from Proto-Indo-European *glēy- (“gleaming”), from Proto-Indo-European *gel- (“to gleam”). Cognate with Scots clean (“absolute, pure, clear, empty”)…

Etymology from Wiktionary, CC BY-SA 3.0