glaucous vs verdurous

glaucous

adj
  • Covered with a bloom or a pale powdery covering, regardless of colour. 

  • Of a pale grey or bluish-green, especially when covered with a powdery residue. 

verdurous

adj
  • Freshly green; verdant; covered with verdure, or consisting of it. 

  • Having youthful or new qualities. 

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