headpiece vs primal

headpiece

noun
  • The top piece or part of various things. 

  • A headstall. 

  • A decorative page heading used at the start of volumes or chapters. 

  • A headset. 

  • Something covering the head. 

  • Protecting cover for the head; a helmet. 

  • The head; the brain. 

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. 

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