Where does “класна стая” come from?

класна стая (Bulgarian) comes from Bulgarian стая, from Bulgarian тая́, from Proto-Slavic tajiti, from Proto-Indo-European teh₂-y- — to steal.

класна стая (Bulgarian): class, classroom room, often in a school, where classes take place

Definitions

  1. class, classroom room, often in a school, where classes take place

Ancestry of “класна стая”, step by step

класна стая traces back through two separate lines of ancestry.

via Bulgarian стая

StepLanguageWordMeaning
1Bulgarianстаяroom, chamber
2Bulgarianтая́(the); this, this one, that, that one, the one, she
3Proto-Slavictajitito hide, conceal
4Proto-Indo-Europeanteh₂-y-to steal

via Bulgarian кла́сен

StepLanguageWordMeaning
1Bulgarianкла́сенclass
Every word from Proto-Indo-European teh₂-y- →Every word from Proto-Slavic tajiti →Every word from Bulgarian тая́ →