commorancy vs occupancy

commorancy

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

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

occupancy

noun
  • The act of occupying, the state of being occupied or the state of being an occupant or tenant. 

  • The specific use to which something occupied is put. 

  • The period of time during which someone rents or otherwise occupies certain land or premises. 

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