autochthonous vs race-related

autochthonous

adj
  • Native to the place where found; indigenous. 

  • Originating where found; found where it originates. 

  • Buried in place, especially of a fossil preserved in its life position without disturbance or disarticulation. 

race-related

How often have the words autochthonous and race-related occurred in a corpus of books? (source: Google Ngram Viewer )