indigenous vs internal

indigenous

adj
  • Innate, inborn. 

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

  • 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. 

internal

adj
  • Present or arising within an organism or one of its parts. 

  • Within the body. 

  • Concerned with the domestic affairs of a nation, state or other political community. 

  • Of the inner nature of a thing. 

  • Applied or intended for application through the stomach by being swallowed. 

  • Concerned with the non-public affairs of a company or other organisation. 

  • Attending a university as well as taking its examinations. 

  • Of or situated on the inside. 

  • Experienced in one's mind; inner rather than expressed. 

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