demonstrate vs discredit

demonstrate

verb
  • to show, display, or present; to prove or make evident 

  • to show the steps taken to create a logical argument or equation. 

  • to show how to use (something). 

  • to participate in or organize a demonstration. 

discredit

verb
  • To harm the good reputation of a person; to cause an idea or piece of evidence to seem false or unreliable. 

noun
  • A degree of dishonour or disesteem; ill repute; reproach. 

  • A person or thing that causes harm to a reputation, as of a person, family, or institution. 

  • The state of being discredited or disbelieved. 

  • Discrediting or disbelieving. 

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