Where does “čso” come from?

čso (Old Czech) comes from Proto-Slavic česo, from Proto-Slavic čь, from Proto-Balto-Slavic ki, from Proto-Indo-European kʷíd, from Proto-Indo-European kʷís, from Proto-Indo-European kʷi- — interrogative base.

čso (Old Czech): Interrogative pronoun; what

Definitions

  1. Interrogative pronoun; what

Ancestry of “čso”, step by step

StepLanguageWordMeaning
1Proto-Slavicčesowhat (interrogative)
2Proto-Slavicčьwhat; alternative form of *čьto
3Proto-Balto-Slavickiwhat
4Proto-Indo-Europeankʷídneuter nominative/accusative singular of *kʷís
5Proto-Indo-Europeankʷíswho, what; who, which, that; which, what
6Proto-Indo-Europeankʷi-interrogative base

Words derived from “čso

Every word from Proto-Indo-European kʷi-Every word from Proto-Indo-European kʷísEvery word from Proto-Indo-European kʷíd