grandeur (n.)youdaoicibaDictYouDict[grandeur 词源字典]
c. 1500, "loftiness, height," from Middle French grandeur, from Old French grandor "size, height, extent, magnitude; greatness" (12c.), from grand "great" (see grand (adj.)). "Being a word of late adoption, it retains the Fr. form -eur of the suffix." Extended sense of "majesty, stateliness" in English is first recorded 1660s.[grandeur etymology, grandeur origin, 英语词源]