Proto-Germanic *jabai

→ English om (inherited(en/da))

→ English if (inherited)

→ English yif (inherited)

→ Old English gif (inherited)

→ German ob (derived)

→ Middle English if (inherited)

→ Old High German oba (inherited)

→ Old High German ibu (inherited)

→ Old High German ipu (inherited)

→ Gothic 𐌾𐌰𐌱𐌰𐌹 (inherited)

→ Gothic 𐌹𐌱𐌰𐌹 (mention)

→ Icelandic ef (derived)

→ Luxembourgish ob (inherited)

→ Norwegian Bokmål om (derived)

→ Dutch of (inherited)

→ Norwegian Nynorsk om (derived)

→ Old Norse ef (derived)

→ Old Frisian of (derived(ofs/fy))

→ Swedish om (derived)

→ Yiddish אויב (inherited)