attrit vs harm

attrit

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

  • To be reduced in quantity through attrition. 

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

  • To wear down through attrition, especially mechanical attrition. 

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

harm

verb
  • To cause injury to another; to hurt; to cause damage to something. 

noun
  • detriment; misfortune. 

  • physical injury; hurt; damage 

  • That which causes injury, damage, or loss. 

  • emotional or figurative hurt 

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