aquamarine vs virescent

aquamarine

adj

  • Of a bluish-green colour. 

noun

  • A bluish-green variety of beryl. 

  • The bluish-green colour of the sea. 

virescent

adj

  • Green-like, greenish. 

  • Becoming green. 

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