disuse vs exhaustion

disuse

noun
  • The state of not being used; neglect. 

verb
  • To cease the use of. 

exhaustion

noun
  • The point of complete depletion, of the state of being used up. 

  • An exhaustive procedure 

  • Supreme tiredness; having exhausted energy. 

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