ethnos vs homeland

ethnos

noun
  • An ethnic group, or a people who have a common national or cultural tradition 

homeland

noun
  • The traditional territory of an ethnic group. 

  • The country that one regards as home. 

  • One's country of birth. 

  • An area set aside for black South Africans under the policy of apartheid. 

  • One's country of residence. 

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