c. 1200, "to submerge, sink; drown, kill by drowning," from Old English drencan "give drink to, ply with drink, make drunk; soak, saturate; submerge, drown," causative of drincan "to drink" (see drink (v.)), from Proto-Germanic *drankijan (source also of Old Norse drekkja, Swedish dränka, Dutch drenken, German tränken, Gothic dragkjan "to give to drink"). Sense of "to wet thoroughly by throwing liquid over" is by 1550s. Related: Drenched; drenching.