Where does “двоярусний” come from?

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

двоярусний (Ukrainian): two-tier, two-tiered

Definitions

  1. two-tier, two-tiered

Ancestry of “двоярусний”, step by step

StepLanguageWordMeaning
1Russianярусtier; circle; geologic stage
2Old Norsejarðhúsunderground room or passage
3Proto-Germanic*erþahūsąunderground dwelling, cave
Every word from Proto-Germanic *erþahūsą →Every word from Old Norse jarðhús →Every word from Russian ярус →