parricide (n.)youdaoicibaDictYouDict[parricide 词源字典]
1. "person who kills a parent or near relative" (1550s), also 2. "act of killing parent or near relative" (1560s), both from Middle French parricide (13c. in sense 1, 16c. in sense 2), from 1. Latin parricida, 2. Latin parricidium, probably from parus "relative" (of uncertain origin, but compare Greek paos, peos "relation," Sanskrit purushah "man") + 1. cida "killer," 2. cidium "killing," both from caedere (see -cide). Old English had fæderslaga.[parricide etymology, parricide origin, 英语词源]