Meaning

noun the serum or watery part of milk that is separated from the curd in making cheese

noun watery part of milk produced when raw milk sours and coagulates

originFrom Middle English whey, wheye, whei, from Old English hwǣġ, hwæiġ, hwæġ, hweġ (“whey”), from Proto-West Germanic *hwaij (“whey”) (cognate with Saterland Frisian Waai, Woaie, West Frisian waai, Dutch wei, Low German Wei, German Low German Wei), perhaps from Proto-Indo-European *kʷey- (“to pile up, build”) (compare Old Church Slavonic чинъ (činŭ, “order”), Ancient Greek ποιέω (poiéō, “to pile up,…

Etymology from Wiktionary, CC BY-SA 3.0