approve vs denounce

approve

verb
  • To officially sanction; to ratify; to confirm; to set as satisfactory. 

  • To make profit of; to convert to one's own profit — said especially of waste or common land appropriated by the lord of the manor. 

  • To consider worthy (to); to be pleased (with); to accept. 

  • To regard as good; to commend; to be pleased with; to think well of. 

denounce

verb
  • To announce the termination of; especially a treaty or armistice. 

  • To claim the right of working a mine that is abandoned or insufficiently worked. 

  • To make a formal or public accusation against; to inform against; to accuse. 

  • To criticize or speak out against (someone or something); to point out as deserving of reprehension, etc.; to openly accuse or condemn in a threatening manner; to invoke censure upon; to stigmatize; to blame. 

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