mortuary vs urnfield

mortuary

noun
  • A place where dead bodies are stored prior to burial or cremation. 

  • A sort of ecclesiastical heriot, a customary gift claimed by, and due to, the minister of a parish on the death of a parishioner. 

adj
  • Of, or relating to death or a funeral; funereal. 

urnfield

noun
  • Ground used as a cemetery in Bronze Age Europe, in which the ashs of cremations were buried in cinerary urns. 

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