disapprove vs unauthorize

disapprove

verb
  • To refuse to approve; reject. 

  • To have or express an unfavorable opinion. 

  • To condemn; to consider wrong or inappropriate; used with of. 

  • She disapproves of rap music because of its sometimes aggressive lyrics. 

unauthorize

verb
  • To disown the authority of; to repudiate. 

  • To withdraw authorization or permissions from. 

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