espousal vs matrimonial

espousal

noun
  • A wedding ceremony. 

  • Adoption of a plan, cause, or idea. 

  • A betrothal. 

matrimonial

noun
  • A classified advertisement describing an individual who wishes to find a marriage partner. 

adj
  • Of, or having to do with matrimony and marriage. 

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