acceptation vs espousal

acceptation

noun
  • The meaning (sense) in which a word or expression is understood, or generally received. 

  • Ready belief. 

espousal

noun
  • Adoption of a plan, cause, or idea. 

  • A wedding ceremony. 

  • A betrothal. 

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