disuse vs vacation

disuse

noun
  • The state of not being used; neglect. 

verb
  • To cease the use of. 

vacation

noun
  • The act of making legally void. 

  • A period during which official activity or business is formally suspended; an official holiday from university, law courts etc. 

  • Freedom from some business or activity. 

  • A holiday; a stretch of leisure time away from work or duty and devoted to rest or pleasure. 

  • The act of vacating something; moving out. 

  • An extended period of time away from work or school. 

verb
  • To spend or take a vacation. 

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