←
Proto-Germanic *fuhsaz (inherited)←
Proto-West Germanic *fuhs (inherited)←
Old High German fuhs (cognate)←
Old Dutch fus (cognate)←
Old Frisian *foks (cognate)←
Old Saxon fohs (cognate)→
English fox (inherited)→
Old English fyxen (suffix)→
Old English foxhol (compound)→
Middle English fox (inherited)