Where does “podzemka” come from?

podzemka (Czech) comes from Czech Země, from Old Czech země, from Proto-Slavic zemľa, from Proto-Balto-Slavic *źémijāˀ, from Proto-Indo-European dʰéǵʰōm, from Proto-Indo-European -ōm, from Proto-Indo-European -mi.

podzemka (Czech): metro, subway

Definitions

  1. metro, subway

Ancestry of “podzemka”, step by step

StepLanguageWordMeaning
1CzechZeměEarth planet
2Old Czechzeměcountry; world
3Proto-Slaviczemľaearth, soil; land
4Proto-Balto-Slavic*źémijāˀearth
5Proto-Indo-Europeandʰéǵʰōmearth
6Proto-Indo-European-ōmemphatic suffix or postpositive particle
7Proto-Indo-European-mi—
Every word from Proto-Indo-European -mi →Every word from Proto-Indo-European -ōm →Every word from Proto-Indo-European dʰéǵʰōm →