←
Old English fūs (mention)←
Proto-Germanic *funsaz (inherited)←
Old High German funs (mention)←
Old Saxon fūs (mention)→
Old English fus (cognate)→
Westrobothnian foss (inherited)→
Westrobothnian fus (inherited)→
Icelandic fús (inherited)→
Norwegian Bokmål fus (inherited)→
Norwegian Nynorsk fus (inherited)→
Norwegian Nynorsk fyse (mention)