Where does “ओइ” come from?

ओइ (Sauraseni Apabhramsa) comes from Sanskrit अव, from Proto-Indo-Iranian Háwa, from Proto-Indo-European h₂ew, from Proto-Indo-European ǵʰe — Postpositional intensifying particle: indeed, at any rate, in fact.

Ancestry of “ओइ”, step by step

StepLanguageWordMeaning
1Sanskritअवoff, away; down; this
2Proto-Indo-IranianHáwaaway from, off; down
3Proto-Indo-Europeanh₂ewaway from, off; again
4Proto-Indo-EuropeanǵʰePostpositional intensifying particle: indeed, at any rate, in fact

Words derived from “ओइ

Every word from Proto-Indo-European ǵʰeEvery word from Proto-Indo-European h₂ewEvery word from Proto-Indo-Iranian Háwa