espousal vs nuptial

espousal

noun
  • A wedding ceremony. 

  • Adoption of a plan, cause, or idea. 

  • A betrothal. 

nuptial

adj
  • Of or pertaining to wedding and marriage. 

  • Capable, or characteristic, of breeding. 

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