disuse vs opt-out

disuse

noun
  • The state of not being used; neglect. 

verb
  • To cease the use of. 

opt-out

noun
  • The act of opting out of something. 

  • A school or hospital that has withdrawn from local control. 

  • A regional broadcast that other stations in the network may elect not to include. 

adj
  • Of a selection, the property of having to choose explicitly to avoid or forbid something; a decision having the default option being inclusion or permission; used particularly with regard to mailing lists and advertisement. 

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