frost.
A cover of minute ice crystals on objects that are exposed to the air. Frost is formed by the same process as dew, except that the temperature of the frosted object is below freezing.
Meaning & usage
A cover of minute ice crystals on objects that are exposed to the air. Frost is formed by the same process as dew, except that the temperature of the frosted object is below freezing.
The cold weather that causes these ice crystals to form.
Coldness or insensibility; severity or rigidity of character.
The act of freezing; the congelation of water or other liquid.
A shade of white, like that of frost.
A disappointment; a cheat.
A kind of light diffuser.
Where this word comes from
Etymology tree Proto-Indo-European *prews- Proto-Indo-European *-tós Proto-Indo-European *prustós Proto-Germanic *frustaz Proto-West Germanic *frost Old English frost Middle English frost English frost From Middle English frost, from an unmetathesized variant of Old English forst (“frost”), from Proto-Germanic *frustaz (“frost”), from Proto-Indo-European *prews- (“to freeze; frost”). Cognate with Saterland Frisian Froast, Fröäst (“frost”), West Frisian froast (“frost”), Cimbrian bròst, vrost, vròst (“frost”), Dutch vorst (“frost”), German Frost (“frost”), Luxembourgish Frascht (“frost”), Vilamovian fröst (“frost”), Danish, Faroese, Icelandic, Norwegian Bokmål, Norwegian Nynorsk, Swedish frost (“frost”), Latin pruīna (“hoarfrost, frost, rime, snow”). Related to freeze.
To cover with frost.
To become covered with frost.
To coat (something, e.g. a cake) with icing to resemble frost.
To anger or annoy.
I think the boss's decision frosted him a bit.
To sharpen (the points of a horse's shoe) to prevent it from slipping on ice.
To bleach individual strands of hair while leaving adjacent strands untouched.
Where this word comes from
Etymology tree Proto-Indo-European *prews- Proto-Indo-European *-tós Proto-Indo-European *prustós Proto-Germanic *frustaz Proto-West Germanic *frost Old English frost Middle English frost English frost From Middle English frost, from an unmetathesized variant of Old English forst (“frost”), from Proto-Germanic *frustaz (“frost”), from Proto-Indo-European *prews- (“to freeze; frost”). Cognate with Saterland Frisian Froast, Fröäst (“frost”), West Frisian froast (“frost”), Cimbrian bròst, vrost, vròst (“frost”), Dutch vorst (“frost”), German Frost (“frost”), Luxembourgish Frascht (“frost”), Vilamovian fröst (“frost”), Danish, Faroese, Icelandic, Norwegian Bokmål, Norwegian Nynorsk, Swedish frost (“frost”), Latin pruīna (“hoarfrost, frost, rime, snow”). Related to freeze.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.