More about Panglossian
Panglossian, “extremely optimistic, especially in the face of unrelieved hardship or adversity,” comes from Dr. Pangloss (Panglosse in French), an old, incurably optimistic tutor in Voltaire’s philosophical satire Candide. Pangloss comes from Greek panglossía “garrulousness, wordiness,” which also may suggest a certain amount of glibness. Candide, the name of the eponymous hero, comes from Latin candidus “bright, shining, pure, clean, good-natured, innocent,” perhaps also a comment on the hero’s naiveté. Panglossian entered English in the first half of the 19th century.