Where does “čь” come from?

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

čь (Proto-Slavic): what; alternative form of *čьto

Definitions

  1. what; alternative form of *čьto

Ancestry of “čь”, step by step

čь traces back through two separate lines of ancestry.

via Proto-Balto-Slavic ki

StepLanguageWordMeaning
1Proto-Balto-Slavickiwhat
2Proto-Indo-Europeankʷídneuter nominative/accusative singular of *kʷís
3Proto-Indo-Europeankʷíswho, what; who, which, that; which, what
4Proto-Indo-Europeankʷi-interrogative base

via Proto-Indo-European kʷid

StepLanguageWordMeaning
1Proto-Indo-Europeankʷidwhat

Words derived from “čь

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