firth.
An arm or inlet of the sea; a river estuary.
Meaning & usage
An arm or inlet of the sea; a river estuary.
Where this word comes from
Borrowed from Scots firth, furth, from Northern Middle English fyrth, from either or both of Old English ford and Old Norse fjǫrðr (“firth, fjord”), from Proto-Germanic *ferþu, *ferþuz (“inlet, fjord”), from Proto-Indo-European *pértus (“crossing”), from *per- (“to carry forth”) + *-tus (suffix forming action nouns from verb roots). The English word is a doublet of fjord, ford, port, and fjard.
Alternative form of frith (“a forest used for hunting; a (small) wood; wooded country; land covered mainly by brushwood”).
Where this word comes from
From Middle English fyrth, a metathetic variant of frith (“forest”), from Old English fyrhþe, fyrhþ (“forest, wooded country; game preserve, hunting ground”), from Proto-West Germanic *furhiþi (“forest, woodland”), Proto-Germanic *furhiþją (“forest, wooded country”), *furhiþǭ, from *furhu (“fir; pine”), from *furahō, *furhō (“fir; pine; (fir or pine) forest”), from Proto-Indo-European *pérkus (“oak”), from *perkʷ- (“oak”).
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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.