disbelief vs discredit

disbelief

noun
  • Unpreparedness, unwillingness, or inability to believe that something is the case. 

  • Astonishment. 

  • The loss or abandonment of a belief; cessation of belief. 

discredit

noun
  • The state of being discredited or disbelieved. 

  • 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. 

  • Discrediting or disbelieving. 

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

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