Meaning

noun relatively long-bodied reptile with usually two pairs of legs and a tapering tail

noun a man who idles about in the lounges of hotels and bars in search of women who would support him

originFrom Middle English lesarde, lisarde, from Anglo-Norman lusard, from Old French lesard (compare French lézard), from Latin lacertus, which is of obscure origin. Displaced native Middle English aske, from Old English āþexe (> modern English ask, askard).

Etymology from Wiktionary, CC BY-SA 3.0