Where does “островной” come from?

островной (Russian) comes from Russian о́стров, from Old East Slavic островъ, from Proto-Slavic ostrovъ, from Proto-Indo-European strow-.

островной (Russian): island; insular

Definitions

  1. island; insular

Ancestry of “островной”, step by step

StepLanguageWordMeaning
1Russianо́стровisland
2Old East Slavicостровъrock
3Proto-Slavicostrovъstreamlined; river island; island
4Proto-Indo-Europeanstrow-—
Every word from Proto-Indo-European strow- →Every word from Proto-Slavic ostrovъ →Every word from Old East Slavic островъ →