Where does “kto” come from?

kto (Serbo-Croatian) comes from Serbo-Croatian tko, from Proto-Slavic kъto, from Proto-Indo-European kʷós — who.

kto (Serbo-Croatian): Obsolete form of tko

Definitions

  1. Obsolete form of tko

Ancestry of “kto”, step by step

StepLanguageWordMeaning
1Serbo-Croatiantkowho; relative and indefinite pronoun
2Proto-Slavickъtowho
3Proto-Indo-Europeankʷóswho
Every word from Proto-Indo-European kʷós →Every word from Proto-Slavic kъto →Every word from Serbo-Croatian tko →