Where does “opriste” come from?

opriste (Middle English) comes from Old English ūprist, from Proto-Germanic upp, from Proto-Germanic ub, from Proto-Indo-European upó, from Proto-Indo-European h₃ewp-.

Ancestry of “opriste”, step by step

StepLanguageWordMeaning
1Old Englishūpristuprising
2Proto-Germanicuppup, upwards
3Proto-Germanicubunder
4Proto-Indo-Europeanupóunder, below
5Proto-Indo-Europeanh₃ewp-—
Every word from Proto-Indo-European h₃ewp- →Every word from Proto-Indo-European upó →Every word from Proto-Germanic ub →