Where does “острог” come from?

острог (Bulgarian) comes from Bulgarian о́стър, from Proto-Slavic ostrъ, from Proto-Balto-Slavic aśras, from Proto-Indo-European *h₂eḱrós, from Proto-Indo-European h₂eḱ- — sharp.

острог (Bulgarian): stake or pole rammed into a haystack (in order to hold it still)

Definitions

  1. stake or pole rammed into a haystack (in order to hold it still)

Ancestry of “острог”, step by step

StepLanguageWordMeaning
1Bulgarianо́стърsharp
2Proto-Slavicostrъsharp
3Proto-Balto-Slavicaśrassharp
4Proto-Indo-European*h₂eḱróssharp
5Proto-Indo-Europeanh₂eḱ-sharp
Every word from Proto-Indo-European h₂eḱ- →Every word from Proto-Indo-European *h₂eḱrós →Every word from Proto-Balto-Slavic aśras →
острог — Etymology, Origin & Word History | Etymology Explorer