constancy vs verb

constancy

noun
  • An unchanging quality or characteristic of a person or thing. 

  • The quality of being constant; steadiness or faithfulness in action, affections, purpose, etc. 

verb

noun
  • An action as opposed to a trait or thing. 

  • A named command that performs a specific operation on an object. 

  • A word that indicates an action, event, or state of being. 

verb
  • To perform any action that is normally expressed by a verb. 

  • To use any word that is or was not a verb (especially a noun) as if it were a verb. 

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