aboriginal vs rudimentary

aboriginal

noun
  • An animal or plant native to a region. 

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

  • Living in a land before colonization by the Europeans. 

rudimentary

noun
  • One of the rudimentary mammae of boars. 

adj
  • Basic; minimal; with less than, or only the minimum, necessary. 

  • Of or relating to one or more rudiments. 

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