salvation vs savior

salvation

noun
  • The process of being saved, the state of having been saved (from hell). 

  • The process of being restored or made new for the purpose of becoming saved; the process of being rid of the old poor quality conditions and becoming improved. 

verb
  • To save, in the religious sense; to bring to salvation. 

savior

noun
  • A person who saves someone, rescues another from harm. 

  • A child who is born to provide an organ or cell transplant to a sibling who has an otherwise fatal disease (used in combination, with "sibling", "baby", "child", "brother", "sister", etc.) 

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