Meaning

noun lewd or lascivious woman

verb waste time; spend one's time idly or inefficiently

verb indulge in a carefree or voluptuous way of life

originFrom Middle English wantoun, wantowen, wantoȝen, wantowe (“uneducated; unrestrained; licentious; sportive; playful”), from wan- (“not, un-, mis-”) + towen, i-towen (“educated”, literally “towed; led; drawn”), from Old English togen, ġetogen, past participle of tēon (“to train, discipline”), equivalent to wan- + towed.

Etymology from Wiktionary, CC BY-SA 3.0