Viridity is a noun. ... Nouns provide the names for all things: people, objects, sensations, feelings, etc.

Is viridity a word?

Viridity is simply a highfalutin way to say "greenness" in both its literal and figurative senses. "Greenness" goes all the way back to Old English grēnnes, from grēne ("green"), a word akin to Old English grōwan ("to grow").

How do you use viridity in a sentence?

These same animals, when subsequently deprived of what might be called their viridigenous diet, lost their viridity entirely in a few days and again became white-fleshed.