maximal vs primal

maximal

adj
  • Largest, greatest (in magnitude), highest, most. 

noun
  • Said of a set of well-formed formulas: that it is as large as it can be without being inconsistent; i.e. that for any well-formed formula φ, the set contains either φ or ~φ. 

  • The element of a set with the greatest magnitude. 

  • Said of an ideal of a ring or a filter of a lattice: that it is as large as it can be without being trivial (improper). 

primal

adj
  • Of greatest importance; primary. 

  • Being the first in time or in history. 

  • 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). 

verb
  • To take part in primal therapy. 

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