legerdemain (n.)youdaoicibaDictYouDict[legerdemain 词源字典]
early 15c., "conjuring tricks," from Middle French léger de main "quick of hand," literally "light of hand," from léger "light" in weight (from Latin levis "light;" see lever) + main "hand" (from Latin manus; see manual).[legerdemain etymology, legerdemain origin, 英语词源]