Where does “wu-” come from?

wu- (Lower Sorbian) comes from Proto-Slavic u, from Proto-Balto-Slavic au, from Proto-Indo-European h₂ew, from Proto-Indo-European ǵʰe — Postpositional intensifying particle: indeed, at any rate, in fact.

wu- (Lower Sorbian): away, off, from; used to mark the perfective...

Definitions

  1. away, off, from; used to mark the perfective...

Ancestry of “wu-”, step by step

wu- traces back through two separate lines of ancestry.

via Proto-Slavic u

StepLanguageWordMeaning
1Proto-Slavicuat, near, by
2Proto-Balto-Slavicau
3Proto-Indo-Europeanh₂ewaway from, off; again
4Proto-Indo-EuropeanǵʰePostpositional intensifying particle: indeed, at any rate, in fact

via Proto-Slavic vy-

StepLanguageWordMeaning
1Proto-Slavicvy-out
2Proto-Balto-Slavicū́
3Proto-Indo-Europeanúdout, outward

Words derived from “wu-

Every word from Proto-Indo-European ǵʰeEvery word from Proto-Indo-European h₂ewEvery word from Proto-Balto-Slavic au