expertise vs primal

expertise

verb
  • To supply with expert knowledge or advice. 

noun
  • Great skill or knowledge in a particular field or hobby. 

  • Advice, or opinion, of an expert. 

primal

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. 

noun
  • A primal cut (of meat). 

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