Where does “откакто” come from?

откакто (Bulgarian) comes from Bulgarian от, from Proto-Slavic otъ, from Proto-Indo-European éti, from Proto-Indo-European h₁é, from Proto-Indo-European ǵʰe — Postpositional intensifying particle: indeed, at any rate, in fact.

откакто (Bulgarian): since, ever since

Definitions

  1. since, ever since

Ancestry of “откакто”, step by step

откакто traces back through two separate lines of ancestry.

via Bulgarian от

StepLanguageWordMeaning
1Bulgarianотused to indicate movement away from a position,...
2Proto-Slavicotъfrom, away from; originating from, starting from...
3Proto-Indo-Europeanétibeyond; over
4Proto-Indo-Europeanh₁éand, then
5Proto-Indo-EuropeanǵʰePostpositional intensifying particle: indeed, at any rate, in fact

via Bulgarian както

StepLanguageWordMeaning
1Bulgarianкактоas
Every word from Proto-Indo-European ǵʰe →Every word from Proto-Indo-European h₁é →Every word from Proto-Indo-European éti →