disuse vs forget

disuse

verb
  • To cease the use of. 

noun
  • The state of not being used; neglect. 

forget

verb
  • To cease remembering. 

  • To lose remembrance of. 

  • To unintentionally not do, neglect. 

  • To unintentionally leave something behind. 

  • Euphemism for fuck, screw (a mild oath). 

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