avidity vs vehemence

avidity

noun
  • Eagerness; intenseness of desire. 

  • Greediness; strong appetite. 

  • The measure of the synergism of the strength of individual interactions between proteins. 

vehemence

noun
  • Eagerness, fervor, excessive strong feeling. 

  • A wild or turbulent ferocity or fury. 

  • An intense concentration, force or power. 

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