conjugal vs promised

conjugal

adj
  • Of or relating to marriage, or the relationship of spouses; connubial. 

promised

adj
  • Under obligation to some future commitment, such as a marriage or vocation. 

  • Predicted; expected; anticipated. 

  • Due to become manifest because of a past promise. 

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