Where does “czwartoklasista” come from?

czwartoklasista (Polish) comes from Polish czwarty, from Old Polish cztwarty, from Proto-Slavic četvьrtъ, from Proto-Balto-Slavic ketwirtas, from Proto-Indo-European *kʷetwr̥tós — fourth.

czwartoklasista (Polish): fourth-grader

Definitions

  1. fourth-grader

Ancestry of “czwartoklasista”, step by step

czwartoklasista traces back through two separate lines of ancestry.

via Polish czwarty

StepLanguageWordMeaning
1Polishczwartyfourth
2Old Polishcztwartyfourth
3Proto-Slavicčetvьrtъfourth
4Proto-Balto-Slavicketwirtasfourth
5Proto-Indo-European*kʷetwr̥tósfourth

via Polish klasa

StepLanguageWordMeaning
1Polishklasaclass; classroom; grade
2Latinclassisany one of the five divisions into which Servius...
3Proto-Italicklāssis—
4Proto-Indo-Europeankelh₁-to call, cry, summon
Every word from Proto-Indo-European *kʷetwr̥tós →Every word from Proto-Balto-Slavic ketwirtas →Every word from Proto-Slavic četvьrtъ →