Where does “kʷú só” come from?

kʷú só (Proto-Indo-European) comes from Proto-Indo-European kʷís, from Proto-Indo-European kʷi- — interrogative base.

Ancestry of “kʷú só”, step by step

kʷú só traces back through two separate lines of ancestry.

via Proto-Indo-European kʷís

StepLanguageWordMeaning
1Proto-Indo-Europeankʷíswho, what; who, which, that; which, what
2Proto-Indo-Europeankʷi-interrogative base

via Proto-Indo-European só

StepLanguageWordMeaning
1Proto-Indo-Europeansóthis; that

Words derived from “kʷú só”

Every word from Proto-Indo-European kʷi- →Every word from Proto-Indo-European kʷís →