grandiosity (n.)youdaoicibaDictYouDict[grandiosity 词源字典]
1814, from French grandiosité; see grandiose + -ity.
The author now and then makes a word for his own use, as complicate, for complicated; and, still less fortunately 'grandiosity' (p. 343). [review of Joseph Forsyth's "Remarks on Italy," "Edinburgh Review," January 1814]
[grandiosity etymology, grandiosity origin, 英语词源]