Where does “ко” come from?

ко (Serbo-Croatian) comes from Serbo-Croatian ка̏о, from Serbo-Croatian ка̏ко, from Proto-Slavic kako, from Proto-Slavic kakъ, from Proto-Balto-Slavic *kōkos.

ко (Serbo-Croatian): who; било ко ― anybody, anyone; мало ко ― very...

Definitions

  1. who; било ко ― anybody, anyone; мало ко ― very...

Ancestry of “ко”, step by step

StepLanguageWordMeaning
1Serbo-Croatianка̏оas, like
2Serbo-Croatianка̏коhow (in what way)
3Proto-Slavickakohow, in which way
4Proto-Slavickakъof what/which kind
5Proto-Balto-Slavic*kōkos—

Words derived from “ко”

Every word from Proto-Balto-Slavic *kōkos →Every word from Proto-Slavic kakъ →Every word from Proto-Slavic kako →