Where does “Rogojeanu” come from?

Rogojeanu (Romanian) comes from Romanian Rogoaza, from Romanian rogoz, from Proto-Slavic rogozъ — reed, rush.

Ancestry of “Rogojeanu”, step by step

StepLanguageWordMeaning
1RomanianRogoaza—
2Romanianrogozsedge (Carex), greater pond sedge (Carex riparia) or true fox-sedge (Carex vulpina)
3Proto-Slavicrogozъreed, rush
Every word from Proto-Slavic rogozъ →Every word from Romanian rogoz →Every word from Romanian Rogoaza →