←
Proto-Germanic *lungw- (inherited)
←
Proto-Indo-European *lengʷʰ- (derived)
←
Icelandic lunga (cognate)
←
Norwegian lunge (cognate)
←
Old Norse lunga (inherited)
→
Old English lungen (cognate)
→
Faroese lunga (cognate)
→
Icelandic lunga (cognate)
→
Norwegian Bokmål lunge (cognate)