sadism (n.)youdaoicibaDictYouDict[sadism 词源字典]
"love of cruelty," 1888, from French sadisme, from the name of Count Donatien A.F. de Sade (1740-1815). Not a marquis, though usually now called one, he was notorious for cruel sexual practices he described in his novels.[sadism etymology, sadism origin, 英语词源]