Native vs autochthon

Native

noun
  • An Aborigine. 

  • A Native American. 

  • An aboriginal inhabitant of a colonized region, especially one colonized by English-speaking people. (Compare native, which is more general.) 

adj
  • Aboriginal; of or relating to Australian Aboriginal peoples, Aborigines. 

  • Aboriginal to a colonized region, especially one colonized by English-speaking people. (Compare native, which is more general.) 

  • Related to black Africans, especially Bantu. 

  • Indian: Native American or First Nation; of or relating to (North) American Indians. 

autochthon

noun
  • A large mass of rock in the place of its original formation, rooted to its basement (foundation rock) as opposed to an allochthon or nappe which has shifted from the place of formation; an autochthonous rock formation. 

  • The earliest inhabitant of an area; an aborigine. 

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