Spiritual vs mortuary

Spiritual

noun
  • A member of a branch of the Franciscan order that advocated simple dress and renounced the owning of property. 

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. 

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