hymeneal vs shotgun wedding

hymeneal

noun
  • A hymn, song or poem in honour of a wedding. 

adj
  • Pertaining to marriage. 

  • Of or pertaining to the hymen. 

  • Pertaining to sexual relations. 

shotgun wedding

noun
  • A wedding in which the bride is already pregnant. 

  • Any similarly reputedly forced partnership, between people, organizations, components, or concepts. 

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