Where does “о” come from?

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

о (Bulgarian): against

Definitions

  1. against

Ancestry of “о”, step by step

о traces back through two separate lines of ancestry.

via Old Church Slavonic о

StepLanguageWordMeaning
1Old Church Slavonicоabout; around; through
2Proto-Slavico(b)around, about; concerning; against, on
3Proto-Balto-Slavicab
4Proto-Indo-Europeanh₃ebʰi

via Proto-Slavic *o

StepLanguageWordMeaning
1Proto-Slavic*ooh! (Used to express strong emotions)
Every word from Proto-Indo-European h₃ebʰi