discipline vs exercise

discipline

verb
  • To train someone by instruction and practice. 

  • To impose order on someone. 

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

  • To teach someone to obey authority. 

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. 

exercise

verb
  • To exert for the sake of training or improvement; to practice in order to develop. 

  • To occupy the attention and effort of; to task; to tax, especially in a painful or vexatious manner; harass; to vex; to worry or make anxious. 

  • To use (a right, an option, etc.); to put into practice. 

  • To perform physical activity for health or training. 

noun
  • Activity intended to improve physical, or sometimes mental, strength and fitness. 

  • The performance of an office, ceremony, or duty. 

  • Any activity designed to develop or hone a skill or ability. 

  • A setting in action or practicing; employment in the proper mode of activity; exertion; application; use. 

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