Wiktionary
n. (alternative spelling of hoarfrost English)
Usage examples of "hoar-frost".
January, when most herbaceous plants are dormant, and when their handsome tufts are alike beautiful, either bedewed with fogs, crystallised with hoar-frost, or glittering in the sunshine.
She drove cautiously along Jamaica Riverway, tires swishing through deep slush, windshield wipers scraping at hoar-frosted glass.
Then there came a hoar-frost, and the earth, which had been black, became white, as its evaporated vapours began to gather and drops of rain to fall.
It was that rather sad time of year when for the first time for many months the fine old sun still blazes away in a cloudless sky, but does not warm you, and the hoar-frosts and the mists and the winds begin to stir their faint limbs at morning and evening, with the gossamer, as the sap of winter vigor remembers itself in the cold corpses which brave summer slew.
The little bridge over the frozen brook was outlined with miniature rose-coloured lights, in which the miracles wrought by the hoar-frost on each transfigured reed and twig glowed flame-colour to their inmost tracery against the darkness of the overhanging trees.