Old Norse undorn

← Old English undern (cognate)

← Proto-Germanic *undurniz (inherited)

← Old High German untarn (cognate)

← Old High German untorn (mention)

← Gothic 𐌿𐌽𐌳𐌰𐌿𐍂𐌽𐌹𐌼𐌰𐍄𐍃 (cognate)

← Old Frisian undern (cognate)

← Old Saxon undorn (cognate)

→ Old English undern (cognate)