prate vs tell tales

prate

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

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

tell tales

verb
  • To lie, to be making false claims. 

  • To report someone in authority for a wrongdoing. 

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