hoarfrost

[ hawr-frawst, -frost, hohr- ]

/ ˈhɔrˌfrɔst, -ˌfrɒst, ˈhoʊr- /

frost(def 2).

Origin of hoarfrost

First recorded in 1250–1300, hoarfrost is from the Middle English word hor-frost. See hoar, frost

hoagy, hoar, hoard, hoarding, hoare, hoarfrost, hoarhound, hoarse, hoarsen, hoary, hoary cress

It was a perfect autumn day, hoarfrost in the morning and midsummer heat at noon.

In Pastures Green |Peter McArthur
To-day, however, they all lent their stalks to support the hoarfrost, to double and quadruple its total mass.

Over Prairie Trails |Frederick Philip Grove
He fancied there would be hoarfrost on the trees in the morning.

A Michigan Man |Elia W. Peattie
Yesterday morning the air became milder, the hoarfrost began to disappear, and presently the snow became "grippy" underfoot.

In Pastures Green |Peter McArthur

Not till I saw what looked like hoarfrost dropping from the side of the Fall was the problem explained.

The Yosemite |John Muir

hoarfrost

/ (ˈhɔːˌfrɒst) /

a deposit of needle-like ice crystals formed on the ground by direct condensation at temperatures below freezing point Also called: white frost

hoarfrost

[ hôr′frôst′ ]

Frozen dew that forms a white coating on a surface.