carehouse vs rest home

carehouse

noun
  • A house or facility where care is given, especially a nursing home. 

rest home

noun
  • A place of residence for people who require constant nursing care and have significant deficiencies with activities of daily living, such as the elderly and younger adults with physical disabilities. 

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