affirmation vs annulment

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. 

annulment

noun
  • A legal (notably judicial) declaration that a marriage is invalid; the procedure leading to it. 

  • An act or instance of annulling. 

  • An invalidation of something, especially a legal contract. 

  • The state of having been annulled. 

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