glaucous vs olive green

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. 

olive green

adj
  • Having this hue. 

noun
  • A green-yellow hue that is brighter and greener than olive. 

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