Old Norse fúll

← Old English fūl (cognate)

← German faul (cognate)

← English foul (cognate)

← Proto-Germanic *fūlaz (inherited)

← Old High German fūl (cognate)

← Gothic 𐍆𐌿𐌻𐌻𐍃 (cognate)

← Proto-Indo-European *pū- (derived)

← Proto-Indo-European *pew- (mention)

← Dutch vuil (cognate)

← Old Frisian fūl (cognate)

→ English fulmar (mention)

→ Danish ful (inherited)

→ Icelandic fúll (derived)

→ Translingual Fulmarus (derived)

→ Norwegian Bokmål ful (inherited)

→ Norwegian Nynorsk ful (inherited)

→ Swedish ful (inherited)