ashram vs hermitage

ashram

noun
  • A secluded religious hermitage inhabited by gurus, or the population of such a hermitage. 

hermitage

noun
  • A place of seclusion. 

  • A house or dwelling where a hermit lives. 

  • A period of seclusion. 

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