fatigue vs prostrate

fatigue

verb
  • To cause to undergo the process of fatigue. 

  • To tire or make weary by physical or mental exertion. 

  • To lose so much strength or energy that one becomes tired, weary, feeble or exhausted. 

  • To wilt a salad by dressing or tossing it. 

  • To undergo the process of fatigue; to fail as a result of fatigue. 

noun
  • Weakening and eventual failure of material, typically by cracking leading to complete separation, caused by repeated application of mechanical stress to the material. 

  • A weariness caused by exertion; exhaustion. 

  • A menial task or tasks, especially in the military. 

prostrate

verb
  • To cause to lie down, to flatten. 

  • To throw oneself down in submission. 

  • To lie flat or face-down. 

  • To overcome or overpower. 

adj
  • Lying flat, face-down. 

  • Physically incapacitated from environmental exposure or debilitating disease. 

  • Trailing on the ground; procumbent. 

  • Emotionally devastated. 

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