←
Proto-Germanic *falwaz (inherited)
←
Proto-Indo-European *pelH- (root)
←
Proto-Indo-European *polHwós (inherited)
→
Old English fealu (cognate)
→
Westrobothnian farsk (mention)
→
Icelandic fölur (derived)
→
Old Norse fǫlna (affix)
→
Swedish falna (mention)