indigenous vs tribal

indigenous

adj
  • In particular, of or relating to a people (or their language or culture) that inhabited a region prior to the arrival of people of other cultures which became dominant (e.g., through colonialism), and which maintains a distinct culture. 

  • Innate, inborn. 

  • Born or originating in, native to a land or region, especially before an intrusion. 

tribal

adj
  • Of or relating to tribes. 

  • Based on or organized according to tribes. 

noun
  • A member of a tribe. 

  • A design or image that has been influenced by indigenous peoples; especially such a tattoo. 

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