Proto-Germanic *aiþaz

→ English oath (inherited)

→ Afrikaans eed (inherited)

→ Old English aþ (inherited)

→ Danish ed (inherited)

→ German Eid (inherited)

→ Finnish aito (mention)

→ Faroese eiður (derived)

→ Old Swedish eþer (derived)

→ Old High German eid (inherited)

→ Gothic 𐌰𐌹𐌸𐍃 (inherited)

→ Ancient Greek οἶτος (cognate)

→ Icelandic eiður (derived)

→ Luxembourgish Eed (inherited)

→ Norwegian Bokmål ed (inherited)

→ German Low German Eed (inherited)

→ Dutch eed (inherited)

→ Dutch meineed (mention)

→ Norwegian Nynorsk eid (inherited)

→ Old Norse eiðr (inherited)

→ Old Saxon eth (inherited)

→ Saterland Frisian Eed (inherited)

→ Swedish ed (inherited)

→ Swedish mened (mention)