|Noah Webster's Dictionary|
(n.) The white particles formed by the congelation of dew; white frost.
Int. Standard Bible Encyclopedia
Hoarfrost (3 Occurrences)
Exodus 16:14 And when the layer of dew was gone up, behold upon the face of the wilderness a fine, scale-like thing, fine as the hoar-frost on the ground. (See RSV)
Job 38:29 Out of whose womb came the ice? And the hoar-frost of heaven, who hath gendered it? (See RSV)
Psalms 147:16 He giveth snow like wool: he scattereth the hoarfrost like ashes. (KJV RSV)