←
Old English feþer (cognate)
←
Proto-Germanic *feþrō (inherited)
←
Old High German fedara (cognate)
←
Proto-Indo-European *peth₂- (root)
←
Proto-Indo-European *péth₂r̥ (derived)
←
Proto-Indo-European *peth₂- (mention)
→
Old English feþer (cognate)
→
Norwegian Bokmål fjær (derived)
→
Norwegian Bokmål fjør (derived)
→
Norwegian Nynorsk fjør (inherited)