Panglossian (adj.)youdaoicibaDictYouDict[Panglossian 词源字典]
"optimistic" (usually ironic or disparaging), 1831, from French Panglosse, name of the philosopher and tutor in Voltaire's "Candide" (1758), from pan- (see pan-) + Greek glossa, literally "tongue" (see gloss (n.2)).[Panglossian etymology, Panglossian origin, 英语词源]