antecedence vs retrogradation

antecedence

noun
  • The relationship of preceding something in time or order. 

  • That which precedes something or someone (e.g. prior events, origin, ancestry). 

  • The length of time by which one event or time period precedes another. 

  • The relationship between a pronoun and its antecedent. 

  • A geologic process that explains how and why antecedent rivers can cut through mountain systems instead of going around them. 

retrogradation

noun
  • Motion in a retrograde manner. 

  • A reaction that takes place in gelatinized starch when the amylose and amylopectin chains realign themselves, largely responsible for bread becoming stale. 

  • Decline, degradation. 

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