verdant vs virescent

verdant

adj
  • Green in colour. 

  • Abundant in verdure; lush with vegetation. 

  • Fresh. 

  • Inexperienced. 

virescent

adj
  • Green-like, greenish. 

  • Becoming green. 

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