mussitate vs twaddle

mussitate

verb
  • To talk indistinctly; to mutter. 

  • To say (words, etc.) indistinctly; to mutter. 

twaddle

verb
  • To talk or write nonsense; to prattle. 

noun
  • Empty or silly idle talk or writing; nonsense, rubbish. 

  • One who twaddles; a twaddler. 

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