Where does “siódmoklasista” come from?

siódmoklasista (Polish) comes from Polish siódmy, from Old Polish siódmy, from Proto-Slavic sedmъ, from Proto-Balto-Slavic septmas, from Proto-Indo-European septḿ̥ — seven.

siódmoklasista (Polish): seventh-grader

Definitions

  1. seventh-grader

Ancestry of “siódmoklasista”, step by step

siódmoklasista traces back through two separate lines of ancestry.

via Polish siódmy

StepLanguageWordMeaning
1Polishsiódmyseventh
2Old Polishsiódmyseventh
3Proto-Slavicsedmъseventh
4Proto-Balto-Slavicseptmas—
5Proto-Indo-Europeanseptḿ̥seven

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 septḿ̥ →Every word from Proto-Balto-Slavic septmas →Every word from Proto-Slavic sedmъ →