Where does “Osica de Sus” come from?

Osica de Sus (English) comes from Romanian Osica de Sus, from Romanian Osica, from Bulgarian осика, from Proto-Slavic *opsika — aspen.

Ancestry of “Osica de Sus”, step by step

StepLanguageWordMeaning
1RomanianOsica de Sus—
2RomanianOsica—
3Bulgarianосикаaspen, apse tree of genus
4Proto-Slavic*opsikaaspen
Every word from Proto-Slavic *opsika →Every word from Bulgarian осика →Every word from Romanian Osica →