stead vs succor

stead

noun
  • An emotional or circumstantial "place" having specified advantages, qualities etc. (now only in phrases). 

  • The position or function (of someone or something), as taken on by a successor. 

  • One's partner in a romantic relationship. 

succor

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