covenant vs imply

covenant

verb
  • To make a stipulation. 

  • To enter into, or promise something by, a covenant. 

  • To enter a formal agreement. 

  • To bind oneself in contract. 

noun
  • A promise, incidental to a deed or contract, either express or implied. 

  • An incidental clause in an agreement. 

  • An agreement to do or not do a particular thing. 

  • A pact or binding agreement between two or more parties. 

imply

verb
  • to hint; to insinuate; to suggest tacitly and avoid a direct statement 

  • to suggest by logical inference 

  • to have as a necessary consequence 

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