Where does “co” come from?

co (Silesian) comes from Old Polish czso, 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.

co (Silesian): what

Definitions

  1. what

Ancestry of “co”, step by step

StepLanguageWordMeaning
1Old Polishczsowhat
2Proto-Slavicčesowhat (interrogative)
3Proto-Slavicčьwhat; alternative form of *čьto
4Proto-Balto-Slavickiwhat
5Proto-Indo-Europeankʷídneuter nominative/accusative singular of *kʷís
6Proto-Indo-Europeankʷíswho, what; who, which, that; which, what
7Proto-Indo-Europeankʷi-interrogative base
Every word from Proto-Indo-European kʷi-Every word from Proto-Indo-European kʷísEvery word from Proto-Indo-European kʷíd