disassociate vs set apart

disassociate

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

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

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

set apart

verb
  • Used other than figuratively or idiomatically: to separate or isolate. 

  • To distinguish, make obvious the distinction between (two things) or of (something). 

  • To select (something or someone) for a specific purpose. 

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