←
Proto-Germanic *faką (inherited)
←
Proto-West Germanic *fak (inherited)
←
Old High German fah (cognate)
←
Proto-Indo-European *pāǵe- (derived)
←
Old Frisian fek (cognate)
←
Old Saxon fak (cognate)
→
English fack (inherited)
→
Old High German fah (cognate)