chief vs maximal

chief

noun
  • The principal part or top of anything. 

  • A leader or head of a group of people, organisation, etc. 

  • An informal term of address. 

  • An informal term of address for a Native American or First Nations man. 

  • The top part of a shield or escutcheon; more specifically, an ordinary consisting of the upper part of the field cut off by a horizontal line, generally occupying the top third. 

verb
  • To smoke cannabis. 

adj
  • Primary; principal. 

  • Intimate, friendly. 

maximal

noun
  • The element of a set with the greatest magnitude. 

  • 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. 

  • 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). 

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

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