Where does “подземелье” come from?

подземелье (Russian) comes from Russian Земля́, from Russian -ский, from Old East Slavic -ьскъ.

подземелье (Russian): vault, cave, dungeon, underground (large, naturally occurring cavity formed underground)

Definitions

  1. vault, cave, dungeon, underground (large, naturally occurring cavity formed underground)

Ancestry of “подземелье”, step by step

StepLanguageWordMeaning
1RussianЗемля́—
2Russian-скийUsed to form adjectives from nouns or sometimes...
3Old East Slavic-ьскъ—
Every word from Old East Slavic -ьскъ →Every word from Russian -ский →Every word from Russian Земля́ →