pour vs wear down

pour

verb
  • To send out as in a stream or a flood; to cause (an emotion) to come out; to cause to escape. 

  • To move in a throng, as a crowd. 

  • To flow, pass or issue in a stream; to fall continuously and abundantly. 

  • To send forth from, as in a stream; to discharge uninterruptedly. 

  • To rain hard. 

  • To cause (liquid, or liquid-like substance) to flow in a stream, either out of a container or into it. 

  • Of a beverage, to be on tap or otherwise available for serving to customers. 

noun
  • Something, or an amount, poured. 

  • A downpour, or flood of precipitation. 

  • The act of pouring. 

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 pour and wear down occurred in a corpus of books? (source: Google Ngram Viewer )