castaway vs pariah

castaway

noun
  • An outcast; someone cast out of a group or society. 

  • A discarded person or thing. 

  • A shipwrecked sailor. 

adj
  • Cast adrift or ashore; marooned. 

  • Shipwrecked. 

  • Cast out; rejected or excluded from a group. 

pariah

noun
  • Synonym of outcast: A person despised and excluded by their family, community, or society, especially a member of the untouchable castes in Indian society. 

  • A similarly despised group of people or species of animal. 

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