blather vs gabble

blather

verb
  • To talk rapidly without making much sense. 

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

noun
  • Nonsensical or foolish talk. 

gabble

verb
  • To talk fast, idly, foolishly, or without meaning. 

  • To utter inarticulate sounds with rapidity. 

noun
  • Confused or unintelligible speech. 

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