Where does “мразилник” come from?

мразилник (Bulgarian) comes from Bulgarian мраз, from Old Church Slavonic мразъ, from Proto-Slavic mòrzъ — frost.

мразилник (Bulgarian): ice-cold chamber, space (e.g. in a cave or a dungeon)

Definitions

  1. ice-cold chamber, space (e.g. in a cave or a dungeon)

Ancestry of “мразилник”, step by step

StepLanguageWordMeaning
1Bulgarianмразfrost, chill, nip, freezing weather, chilly...
2Old Church Slavonicмразъfrost
3Proto-Slavicmòrzъfrost
Every word from Proto-Slavic mòrzъEvery word from Old Church Slavonic мразъEvery word from Bulgarian мраз