blather vs rodomontade

blather

noun
  • Nonsensical or foolish talk. 

verb
  • To say (something foolish or nonsensical); to say (something) in a foolish or overly verbose way. 

  • To talk rapidly without making much sense. 

rodomontade

noun
  • Vain boasting; a rant; pretentious behaviour. 

adj
  • Pretentiously boastful. 

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