Where does “четворка” come from?

четворка (Serbo-Croatian) comes from Serbo-Croatian четврти, from Proto-Slavic četvьrtъ, from Proto-Balto-Slavic ketwirtas, from Proto-Indo-European *kʷetwr̥tós — fourth.

четворка (Serbo-Croatian): four (digit or figure)

Definitions

  1. four (digit or figure)

Ancestry of “четворка”, step by step

StepLanguageWordMeaning
1Serbo-Croatianчетвртиfourth
2Proto-Slavicčetvьrtъfourth
3Proto-Balto-Slavicketwirtasfourth
4Proto-Indo-European*kʷetwr̥tósfourth
Every word from Proto-Indo-European *kʷetwr̥tósEvery word from Proto-Balto-Slavic ketwirtasEvery word from Proto-Slavic četvьrtъ
четворка — Etymology, Origin & Word History | Etymology Explorer