Proto-Celtic *widus

→ Breton gwez (inherited)

→ Welsh gwŷdd (inherited)

→ French Vienne (derived)

→ Irish fiodh (inherited)

→ Scottish Gaelic fiodh (inherited)

→ Italian Vienna (derived)

→ Cornish gwydh (inherited)

→ Latin Vienna (derived)

→ Lithuanian vidus (cognate)

→ Old Irish fid (inherited)