concord vs misunderstanding

concord

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

  • A state of agreement; harmony; union. 

  • 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 

misunderstanding

noun
  • A mistake as to the meaning of something or a specific point of view; erroneous interpretation or comprehension; misconception. 

  • A disagreement; difference of opinion; dissension; quarrel. 

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