prep vs primal

prep

verb
  • To prepare. 

noun
  • A student or graduate of a prep school, a preppy. 

  • A prep school. 

  • preparatory level; the last two levels or the fourth and fifth years of preschool; the two levels before first grade. 

  • Preparation. 

  • Homework, work set to do outside class time, used widely in public schools and preparatory schools but not state schools. 

primal

verb
  • To take part in primal therapy. 

noun
  • A primal cut (of meat). 

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