permafrost.
Permanently frozen ground, or a specific layer thereof.
Meaning & usage
Permanently frozen ground, or a specific layer thereof.
Where this word comes from
Etymology tree Proto-Indo-European *per-der. Proto-Italic *peri- Latin per- Proto-Indo-European *men- Proto-Indo-European *-éh₁ti Proto-Indo-European *-yeti Proto-Indo-European *-éh₁yeti Proto-Indo-European *m̥néh₁yeti Proto-Italic *m(V)nēō Latin maneō Latin permaneōlbor. Middle French permanentbor. English permanentclip. English perma- 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 English permafrost From perma- + frost.
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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.