Ossianic vs grandiloquent

Ossianic

adj
  • Of or pertaining to, or characteristic of, Ossian, a legendary Erse or Celtic bard. 

grandiloquent

adj
  • Given to using language in a showy way by using an excessive number of difficult words to impress others; bombastic; turgid 

How often have the words Ossianic and grandiloquent occurred in a corpus of books? (source: Google Ngram Viewer )