immigrant vs incomer

immigrant

noun
  • A non-native person who comes to a country from another country to permanently settle there. 

  • A plant or animal that establishes itself in an area where it previously did not exist. 

adj
  • Of or relating to immigrants or the act of immigrating. 

incomer

noun
  • An outsider who moves to a community or a place; (used by those who consider themselves to be its original inhabitants). 

  • One who comes in. 

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