put in vs wear down

put in

verb
  • To apply, request, or submit. 

  • To call at (a place or port), especially as a deviation from an intended journey. 

  • To contribute. 

  • To place inside. 

wear down

verb
  • To eventually persuade or defeat (someone) through persistent effort. 

  • To cause (someone) physical or mental fatigue. 

  • Used other than figuratively or idiomatically: see wear, down. 

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