atrophy vs attrit

atrophy

verb
  • To wither or waste away. 

  • To cause to waste away or become abortive; to starve or weaken. 

noun
  • A reduction in the functionality of an organ caused by disease, injury or lack of use. 

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. 

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