sententious (adj.)youdaoicibaDictYouDict[sententious 词源字典]
mid-15c., "full of meaning," from Middle French sententieux, from Latin sententiosus "full of meaning, pithy," from sententia "thought; expression of a thought" (see sentence (n.)). Meaning "addicted to pompous moralizing" first recorded 1590s. Related: Sententiously; sententiousness.[sententious etymology, sententious origin, 英语词源]