Where does “płazina” come from?

płazina (Polish) comes from Polish płaski, from Old Polish płoski, from Proto-Slavic ploskъ, from Proto-Balto-Slavic plak-ska-.

Ancestry of “płazina”, step by step

StepLanguageWordMeaning
1Polishpłaskiflat
2Old Polishpłoskieven, level, smooth
3Proto-Slavicploskъflat
4Proto-Balto-Slavicplak-ska-—
Every word from Proto-Balto-Slavic plak-ska- →Every word from Proto-Slavic ploskъ →Every word from Old Polish płoski →