Where does “Ocheretyne” come from?

Ocheretyne (English) comes from Ukrainian Очере́тине, from Ukrainian очерет, from Proto-Slavic *o(b)čertъ — reed.

Ancestry of “Ocheretyne”, step by step

StepLanguageWordMeaning
1UkrainianОчере́тине—
2Ukrainianочеретreed; reeds
3Proto-Slavic*o(b)čertъreed
Every word from Proto-Slavic *o(b)čertъ →Every word from Ukrainian очерет →Every word from Ukrainian Очере́тине →