gabble vs gabbling

gabble

noun
  • Confused or unintelligible speech. 

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

  • To utter inarticulate sounds with rapidity. 

gabbling

noun
  • Rapid, confused speech. 

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