gigolo (n.)
1922, from French gigolo, formed as a masc. of gigole "tall, thin woman; dancing girl; prostitute," perhaps from verb gigoter "to move the shanks, hop," from gigue "shank," also "fiddle," of Germanic origin. This is perhaps the same word that was borrowed earlier as Middle English giglot (early 14c.) "lewd, wanton girl," which was later applied to males (mid-15c.) with the sense "villainous man." Middle English gigletry meant "lasciviousness, harlotry" (late 14c.).