concord vs discord

concord

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

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

  • A state of agreement; harmony; union. 

  • 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 

discord

noun
  • An inharmonious combination of simultaneously sounded tones; a dissonance. 

  • Any harsh noise, or confused mingling of sounds. 

  • Tension or strife resulting from a lack of agreement; dissension. 

  • Lack of concord, agreement or harmony. 

verb
  • To untie things which are connected by a cord. 

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