Meaning

noun a pause during which things are calm or activities are diminished

noun a period of calm weather

verb calm by deception

originFrom Middle English lullen, lollen. Originally, perhaps expressive in origin from la-la-la or lu-lu-lu sounds made in calming a child. Compare Finnish laulaa (“to sing”) and Hiligaynon lala (“to sing a lullaby”). Cognate with Scots lul, lule, loll (“to lull, put to sleep, howl, caterwaul”), Dutch lollen (“to sing badly, caterwaul”), Dutch lullen (“to chatter, prate, cheat, deceive”), Low German…

Etymology from Wiktionary, CC BY-SA 3.0