concord vs covenant

concord

noun
  • A state of agreement; harmony; union. 

  • Agreement of words with one another, in gender, number, person or case. 

  • An agreeable combination of tones simultaneously heard; a consonant chord; consonance; harmony. 

  • A variety of sweet American grape, with large dark blue (almost black) grapes in compact clusters; a Concord grape. 

verb
  • To agree; to act together 

covenant

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

  • 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. 

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

  • To enter a formal agreement. 

  • To make a stipulation. 

  • To bind oneself in contract. 

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