approve vs discipline

approve

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

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

discipline

verb
  • To teach someone to obey authority. 

  • To impose order on someone. 

  • To train someone by instruction and practice. 

  • To punish someone in order to (re)gain control. 

noun
  • A flagellation as a means of obtaining sexual gratification. 

  • A specific branch of knowledge or learning. 

  • An enforced compliance or control. 

  • A whip used for self-flagellation. 

  • A category in which a certain art, sport or other activity belongs. 

  • A controlled behaviour; self-control. 

  • A set of rules regulating behaviour. 

  • A punishment to train or maintain control. 

  • A state of order based on submission to authority. 

  • A systematic method of obtaining obedience. 

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