Where does “ostrokątny” come from?

ostrokątny (Polish) comes from Polish Ostry, from Proto-Slavic ostrъ, from Proto-Balto-Slavic aśras, from Proto-Indo-European *h₂eḱrós, from Proto-Indo-European h₂eḱ- — sharp.

ostrokątny (Polish): acute-angled

Definitions

  1. acute-angled

Ancestry of “ostrokątny”, step by step

ostrokątny traces back through two separate lines of ancestry.

via Polish Ostry

StepLanguageWordMeaning
1PolishOstrysharp
2Proto-Slavicostrъsharp
3Proto-Balto-Slavicaśrassharp
4Proto-Indo-European*h₂eḱróssharp
5Proto-Indo-Europeanh₂eḱ-sharp

via Polish kąt

StepLanguageWordMeaning
1Polishkątcorner; angle
2Proto-Slavickǫtъcorner
3Latincattusa cat
4Latincattaa cat
Every word from Proto-Indo-European h₂eḱ- →Every word from Proto-Indo-European *h₂eḱrós →Every word from Proto-Balto-Slavic aśras →