put off vs turn down

put off

verb
  • To cause to dislike; to discourage (from doing). 

  • To procrastinate. 

  • To emit; to give off (an odor, smoke, etc.). 

  • To distract; to disturb the concentration of. 

  • To delay (a task, event, etc.). 

adj
  • daunted or fazed 

  • offended, repulsed 

turn down

verb
  • To refuse, decline, or deny. 

  • To reduce the power, etc. of something by means of a control, such as the volume, heat, or light. 

  • To reposition by turning, flipping, etc. in a downward direction; to double or fold down. 

How often have the words put off and turn down occurred in a corpus of books? (source: Google Ngram Viewer )