disassociate vs unbind

disassociate

verb
  • To separate; to disunite; to disintegrate; to dissolve. 

  • To separate into smaller discrete units, as with analysis. 

  • To separate (oneself); to dissolve one's association with a person, group, or situation. 

unbind

verb
  • To take bindings off. 

  • To set free from a debt, contract or promise. 

  • To disable some kind of connection in software, such as a key binding. 

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