Priscian (n.)youdaoicibaDictYouDict[Priscian 词源字典]
Latin Priscianus, name of a celebrated Roman grammarian (c.500-530); hence to break Priscian's head (1520s) "to violate rules of grammar" (Latin diminuere Prisciani caput). See Priscilla.[Priscian etymology, Priscian origin, 英语词源]