bombast vs declamation

bombast

noun
  • High-sounding words; language above the dignity of the occasion; a pompous or ostentatious manner of writing or speaking. 

adj
  • Big without meaning, or high-sounding; bombastic, inflated; magniloquent. 

verb
  • To use high-sounding words; to speak or write in a pompous or ostentatious manner. 

  • To swell or fill out; to inflate, to pad. 

declamation

noun
  • Pretentious rhetorical display, with more sound than sense. 

  • The act or art of declaiming; rhetorical delivery; loud speaking in public. 

  • A set or harangue; declamatory discourse. 

  • The public recitation of speeches as an exercise in schools and colleges. 

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