wear down vs weary

wear down

verb
  • To cause (someone) physical or mental fatigue. 

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

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

weary

verb
  • To make or to become weary. 

adj
  • Expressive of fatigue. 

  • Having the strength exhausted by toil or exertion; tired; fatigued. 

  • Having one's patience, relish, or contentment exhausted; tired; sick. 

  • Causing weariness; tiresome. 

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