Proto-West Germanic *farn
→
English fern (inherited)→
Old English fearn (inherited)→
German Farn (inherited)→
Middle English fern (inherited)→
West Frisian fear (inherited)→
Old High German farn (inherited)→
Luxembourgish Far (inherited)→
Dutch varen (inherited)→
Old Saxon farn (inherited)→
Scots fairn (inherited)