primal vs rudimentary

primal

noun
  • A primal cut (of meat). 

verb
  • To take part in primal therapy. 

adj
  • Being the first in time or in history. 

  • Of greatest importance; primary. 

  • Being one of the pieces of meat initially separated from the carcass during butchering, prior to division into smaller cuts. 

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 primal and rudimentary occurred in a corpus of books? (source: Google Ngram Viewer )