Proto-Germanic *fanją

→ English fen (inherited)

→ English fen (inherited(en/enm))

→ Old English fenn (inherited)

→ German Fenn (inherited)

→ Middle Dutch vene (inherited)

→ Middle Dutch venne (inherited)

→ Faroese fen (inherited)

→ French fange (derived)

→ French fagne (derived)

→ West Frisian fean (inherited)

→ Galician fana (derived)

→ Galician fananco (derived)

→ Gothic 𐍆𐌰𐌽𐌹 (inherited)

→ Icelandic fen (inherited)

→ Dutch ven (inherited)

→ Dutch veen (inherited)

→ Old Norse fen (inherited)

→ Saterland Frisian Foan (inherited)