Where does “ярус” come from?

ярус (Russian) comes from Old Norse jarðhús, from Proto-Germanic *erþahūsą — underground dwelling, cave.

ярус (Russian): tier; circle; geologic stage

Definitions

  1. tier; circle; geologic stage

Ancestry of “ярус”, step by step

StepLanguageWordMeaning
1Old Norsejarðhúsunderground room or passage
2Proto-Germanic*erþahūsąunderground dwelling, cave

Words derived from “ярус”

Every word from Proto-Germanic *erþahūsą →Every word from Old Norse jarðhús →
ярус — Etymology, Origin & Word History | Etymology Explorer