Hoar

a.	1.	White, or grayish white; as, hoar frost; hoar cliffs.
	2.	Gray or white with age; hoary. Whose beard with age is hoar. - Coleridge. Old trees with trunks all hoar. - Byron.
	3.	Musty; moldy; stale.
n.	1.	Hoariness; antiquity. Covered with the awful hoar of innumerable ages. - Burke.
v. t.	1.	To become moldy or musty.

Noun	1.	hoar - ice crystals forming a white deposit (especially on objects outside) Synonyms: frost, hoarfrost, rime
Adj.	1.	hoar - showing characteristics of age, especially having gray or white hair; "whose beard with age is hoar"-Coleridge; "nodded his hoary head" Synonyms: grey-haired, grey-headed, grizzly, hoary, white-haired, gray-haired, gray-headed, grey, gray

Jack Frost, advanced, advanced in life, advanced in years, aged, along in years, ancient, argent, argentine, black frost, canescent, chalky, cretaceous, elderly, fleecy-white, frost, frost line, frost smoke, frosted, frosty, gray, gray with age, gray-haired, gray-headed, grizzled, grizzly, grown old, hoarfrost, hoary, killing frost, lactescent, lily-white, marble, marmoreal, milky, niveous, old, old as Methuselah, patriarchal, platinum, pure white, rime, rime frost, senectuous, sharp frost, silver, silvered, silvery, snow-white, snowy, swan-white, venerable, white, white as snow, white frost, white with age, white-bearded, white-crowned, white-haired, wrinkled, wrinkly, years old