Where does “poloostrovní” come from?

poloostrovní (Czech) comes from Czech poloostrov, from Czech ostrov, from Old Czech ostrov, from Proto-Slavic ostrovъ, from Proto-Indo-European strow-.

poloostrovní (Czech): peninsular

Definitions

  1. peninsular

Ancestry of “poloostrovní”, step by step

StepLanguageWordMeaning
1Czechpoloostrovpeninsula
2Czechostrovisland
3Old Czechostrovisland
4Proto-Slavicostrovъstreamlined; river island; island
5Proto-Indo-Europeanstrow-—
Every word from Proto-Indo-European strow- →Every word from Proto-Slavic ostrovъ →Every word from Old Czech ostrov →