greediness vs pleonexia

greediness

noun
  • The state of being greedy; greed. 

pleonexia

noun
  • Excessive or insatiable greed, avarice, covetousness, the desire to have more, a greedy desire for certain goods. 

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