blather vs clack

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. 

clack

verb
  • To chatter or babble; to utter rapidly without consideration. 

  • To cause to make a sudden, sharp noise, or succession of noises; to click. 

  • To make a sudden, sharp noise, or succession of noises; to click. 

  • To cut the sheep's mark off (wool), to make the wool weigh less and thus yield less duty. 

noun
  • Chatter; prattle. 

  • The tongue. 

  • An abrupt, sharp sound, especially one made by two hard objects colliding repetitively; a sound midway between a click and a clunk. 

  • Anything that causes a clacking noise, such as the clapper of a mill, or a clack valve. 

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