accord vs concomitance

accord

noun
  • Agreement or harmony of things in general. 

  • Voluntary or spontaneous impulse to act. 

  • Agreement or concurrence of opinion, will, or action. 

  • A distinctive mixture of fragrances or the odor thereof. 

  • An agreement between parties in controversy, by which satisfaction for an injury is stipulated, and which, when executed, prevents a lawsuit. 

  • An international agreement. 

  • A harmony in sound, pitch and tone; concord. 

verb
  • To agree or correspond; to be in harmony; to be concordant. 

  • To grant as suitable or proper; to concede or award. 

  • To bring (people) to an agreement; to reconcile, settle, adjust or harmonize. 

  • To make to agree or correspond; to suit one thing to another; to adjust. 

  • To agree in pitch and tone. 

concomitance

noun
  • occurrence or existence together or in connection with one another, coexistence 

  • A concomitant. 

  • The Roman Catholic doctrine of the existence of the entire body of Christ in the Eucharist, under each element, so that the body and blood are both received by communication in one kind only. 

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