attrit vs tire

attrit

verb
  • To engage in attrition; to quit or drop out. 

  • To be reduced in quantity through attrition. 

  • To lose, or to kill, troops by attrition due to sustained firepower. 

  • To wear down through attrition, especially mechanical attrition. 

noun
  • One who voluntarily or involuntarily leaves a company; a termed employee. 

tire

verb
  • To become bored or impatient (with). 

  • To bore. 

  • To become sleepy or weary. 

  • To make sleepy or weary. 

noun
  • A covering for the head; a headdress. 

  • A tier, row, or rank. 

  • A child's apron covering the upper part of the body, and tied with tape or cord; a pinafore. Also tier. 

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