Where does “о-” come from?

о- (Russian) comes from Proto-Slavic o(b), from Proto-Balto-Slavic ab, from Proto-Indo-European h₃ebʰi.

о- (Russian): prefix added to adjectives or nouns to produce...

Definitions

  1. prefix added to adjectives or nouns to produce...

Ancestry of “о-”, step by step

StepLanguageWordMeaning
1Proto-Slavico(b)around, about; concerning; against, on
2Proto-Balto-Slavicab—
3Proto-Indo-Europeanh₃ebʰi—

Words derived from “о-”

Every word from Proto-Indo-European h₃ebʰi →Every word from Proto-Balto-Slavic ab →Every word from Proto-Slavic o(b) →