←
Proto-Germanic *efþau (derived)←
Old High German odo (mention)←
Old High German abur (mention)←
Old High German wedar (mention)→
Cimbrian odar (inherited)→
Cimbrian òdar (inherited)→
German oder (inherited)→
Hunsrik odder (inherited)→
Icelandic eða (mention)→
Luxembourgish oder (inherited)→
Old Norse eðr (cognate)→
Yiddish אָדער (inherited)