Where does “об” come from?

об (Old Church Slavonic) comes from Proto-Slavic o(b), from Proto-Balto-Slavic ab, from Proto-Indo-European h₃ebʰi.

об (Old Church Slavonic): on, at; through; during

Definitions

  1. on, at; through; during

Ancestry of “об”, step by step

StepLanguageWordMeaning
1Proto-Slavico(b)around, about; concerning; against, on
2Proto-Balto-Slavicab—
3Proto-Indo-Europeanh₃ebʰi—
Every word from Proto-Indo-European h₃ebʰi →Every word from Proto-Balto-Slavic ab →Every word from Proto-Slavic o(b) →