Where does “ūder” come from?

ūder (Old Frisian) comes from Proto-Germanic ūdarą, from Proto-Indo-European h₁ewHdʰr̥-.

Ancestry of “ūder”, step by step

StepLanguageWordMeaning
1Proto-Germanicūdarąudder; breast
2Proto-Indo-Europeanh₁ewHdʰr̥-
Every word from Proto-Indo-European h₁ewHdʰr̥-Every word from Proto-Germanic ūdarą