boarding house vs commorancy

boarding house

noun
  • A private house in which paying residents are provided with accommodation and meals. 

  • A boarding school building where boarders live during term time. 

commorancy

noun
  • A house for a place of residence, usually a temporary one. 

  • Act of dwelling or residence in a place; habitation. 

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