antecedent vs anterior

antecedent

adj
  • Earlier, either in time or in order. 

  • Presumptive. 

noun
  • The first term of a ratio, i.e. the term a in the ratio a:b, the other being the consequent. 

  • An ancestor. 

  • Previous principles, conduct, history, etc. 

  • Any thing that precedes another thing, especially the cause of the second thing. 

  • A word, phrase or clause referred to by a pronoun. 

  • The first of two subsets of a sequent, consisting of all the sequent's formulae which are valuated as true. 

  • The conditional part of a hypothetical proposition, i.e. p→q, where p is the antecedent, and q is the consequent. 

anterior

adj
  • Coming before or earlier in time or development, prior to, preceding. 

  • Pronounced with an obstruction located in front of the palato-alveolar region of the mouth, e.g. b, p, d, t. 

  • (of a part of a flower or leaf) Situated further away from the mainstem. 

  • Nearer the forward end, especially in the front of the body; nearer the head or forepart of an animal. 

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