avidity vs covetousness

avidity

noun
  • Greediness; strong appetite. 

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

  • Eagerness; intenseness of desire. 

covetousness

noun
  • Immoderate desire for the possession of something, especially for wealth. 

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