Where does “клас” come from?

клас (Russian) comes from Old Church Slavonic класъ, from Proto-Slavic kȏlsъ, from Proto-Indo-European kolH-so-.

клас (Russian): ear of corn

Definitions

  1. ear of corn

Ancestry of “клас”, step by step

StepLanguageWordMeaning
1Old Church Slavonicкласъear of corn
2Proto-Slavickȏlsъear (of grain)
3Proto-Indo-EuropeankolH-so-—
Every word from Proto-Indo-European kolH-so- →Every word from Proto-Slavic kȏlsъ →Every word from Old Church Slavonic класъ →
клас — Etymology, Origin & Word History | Etymology Explorer