greenness vs ignorance

greenness

noun
  • Inexperience. 

  • The fact of being environmentally or ecologically conscious; commitment to environmental conservation. 

  • The state or quality of being green; green colour. 

ignorance

noun
  • The condition of being uninformed or uneducated; lack of knowledge or information. 

  • Sins committed through ignorance. 

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