Where does “острота” come from?

острота (Russian) comes from Russian о́стрый, from Proto-Slavic ostrъ, from Proto-Balto-Slavic aśras, from Proto-Indo-European *h₂eḱrós, from Proto-Indo-European h₂eḱ- — sharp.

острота (Russian): acuity; sharpness; joke, witticism, one-liner

Definitions

  1. acuity; sharpness; joke, witticism, one-liner

Ancestry of “острота”, step by step

StepLanguageWordMeaning
1Russianо́стрыйpointed, sharp; sharp, pointed
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 →