clack vs run on

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. 

run on

verb
  • To carry on or continue (e.g. the type for a new sentence) without making a break or commencing a new paragraph. 

  • Using a certain time zone. 

  • To continue without interruption 

  • To operate with a particular energy source. 

  • To make numerous drafts or demands for payment, as upon a bank. 

  • To continue talking for a long time. 

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