affirmation vs renunciation

affirmation

noun
  • A form of self-forced meditation or repetition; autosuggestion. 

  • That which is affirmed; a declaration that something is true. 

  • The solemn declaration made by Quakers and others incapable of taking an oath. 

renunciation

noun
  • The resignation of an ecclesiastical office. 

  • In the Anglican baptismal service, the part in which the candidate in person or by his sureties renounces the Devil and all his works. 

  • The act of rejecting or renouncing something as invalid. 

  • The act by which a person abandons a right acquired, but without transferring it to another. 

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