Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

432. Gray — N. gray &c adj.; neutral tint, silver, pepper and salt,

chiaroscuro, grisaille [Fr.]. [Pigments] Payne's gray; black &c 431. Adj. gray, grey; iron-gray, dun, drab, dingy, leaden, livid, somber, sad, pearly, russet, roan; calcareous, limy, favillous†; silver, silvery, silvered; ashen, ashy; cinereous†, cineritious†; grizzly, grizzled; slate-colored, stone-colored, mouse-colored, ash-colored; cool.