aboriginal vs plesiomorphic

aboriginal

adj
  • First according to historical or scientific records; original; indigenous; primitive. 

  • Living in a land before colonization by the Europeans. 

noun
  • An animal or plant native to a region. 

plesiomorphic

adj
  • Sharing a character state with an ancestral clade; primitive. 

  • plesiomorphous 

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