refoulement vs rejection

refoulement

noun
  • Rendition of a person to an area (chiefly their country of origin) where they will face mistreatment, for example, expulsion of refugees into a war zone; (countable) an instance of this. 

rejection

noun
  • The state of being rejected. 

  • The act of rejecting. 

  • An immune reaction of a host organism to a foreign biological tissue, such as in an organ transplant. 

  • A blocked shot. 

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