grandiloquence vs hyperbole

grandiloquence

noun
  • Lofty, pompous or bombastic speech or writing. 

hyperbole

noun
  • Deliberate or unintentional overstatement, particularly extreme overstatement. 

  • An instance or example of such overstatement. 

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