Where does “е” come from?

е (Bulgarian) comes from Proto-Slavic estь, from Proto-Balto-Slavic *esti, from Proto-Indo-European *h₁ésti.

е (Bulgarian): third-person singular present indicative of съм;...

Definitions

  1. third-person singular present indicative of съм;...

Ancestry of “е”, step by step

StepLanguageWordMeaning
1Proto-Slavicestьestь; third-person singular present active...
2Proto-Balto-Slavic*esti—
3Proto-Indo-European*h₁ésti—
Every word from Proto-Indo-European *h₁ésti →Every word from Proto-Balto-Slavic *esti →Every word from Proto-Slavic estь →