Where does “урак” come from?

урак (Eastern Mari) comes from Eastern Mari у, from Russian у, from Old East Slavic у, 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.

Ancestry of “урак”, step by step

урак traces back through two separate lines of ancestry.

via Eastern Mari у

StepLanguageWordMeaning
1Eastern Mariуnew
2RussianуWu language
3Old East Slavicуat
4Proto-Slavicuat, near, by
5Proto-Balto-Slavicau
6Proto-Indo-Europeanh₂ewaway from, off; again
7Proto-Indo-EuropeanǵʰePostpositional intensifying particle: indeed, at any rate, in fact

via Eastern Mari рак

StepLanguageWordMeaning
1Eastern Mariрак
Every word from Proto-Indo-European ǵʰeEvery word from Proto-Indo-European h₂ewEvery word from Proto-Balto-Slavic au