dissonance vs dyscrasy

dissonance

noun
  • An instance of disharmony or disjunction; a clash. 

  • A harsh, discordant combination of sounds. 

  • Conflicting notes that are not overtones of the note or chord sounding. 

  • A state of disagreement or conflict. 

dyscrasy

noun
  • Disharmony 

  • A bodily disorder; an imbalance of the humours 

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