autochthonal vs inbred

autochthonal

adj
  • existing where it was formed or born; native, aboriginal, indigenous 

inbred

adj
  • Having an ancestry characterized by inbreeding. 

  • Bred within; innate. 

  • Describing a strain produced through successive generations of inbreeding resulting in a population of genetically identical individuals which are homozygous at all genetic loci. 

noun
  • An inbred individual. 

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