emigrant vs indigenous

emigrant

noun
  • Any of various pierid butterflies of the genus Catopsilia. Also called a migrant. 

  • Someone who leaves a country to settle in a new country. 

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. 

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