Where does “Fenn” come from?

Fenn (English) comes from English fen, from Middle English fen, from Old English fenn, from Old English tūn, from Proto-West Germanic tūn, from Proto-Germanic tūną, from Gaulish dunum, from Proto-Celtic dūnom — smoke; mist, haze.

Ancestry of “Fenn”, step by step

Fenn traces back through 3 separate lines of ancestry.

via English fen

StepLanguageWordMeaning
1EnglishfenA type of wetland fed by ground water and runoff,...
2Middle Englishfenfen, bog, swamp; dirt, muddiness; dung, feces
3Old Englishfennmud; fen, marsh
4Old Englishtūnenclosure, yard; place; dwelling
5Proto-West Germanictūnfence
6Proto-Germanictūnąfence; enclosure
7Gaulishdunumfort; hill, hillfort
8Proto-Celticdūnomstronghold, rampart
9Proto-Indo-Europeandʰewh₂-smoke; mist, haze

via German Fenn

StepLanguageWordMeaning
1GermanFennmire, bog, fen
2Middle Low Germanvenne—
3Old Saxonfenni—

via Chinese Mandarin 馮

StepLanguageWordMeaning
1Chinese Mandarin馮—
Every word from Proto-Indo-European dʰewh₂- →
Fenn — Etymology, Origin & Word History | Etymology Explorer