Where does “ohso” come from?

ohso (Old Dutch) comes from Proto-Germanic uhsô, from Proto-Indo-European uksḗn, from Proto-Indo-European h₂ug-s-ḗn.

Ancestry of “ohso”, step by step

StepLanguageWordMeaning
1Proto-Germanicuhsôox
2Proto-Indo-Europeanuksḗnbull
3Proto-Indo-Europeanh₂ug-s-ḗn—
Every word from Proto-Indo-European h₂ug-s-ḗn →Every word from Proto-Indo-European uksḗn →Every word from Proto-Germanic uhsô →