mussitate vs prate

mussitate

verb
  • To talk indistinctly; to mutter. 

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

prate

verb
  • To talk much and to little purpose; to be loquacious; to speak foolishly. 

noun
  • Talk to little purpose; trifling talk; unmeaningful loquacity. 

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