Family name origins & meanings
- Croatian and Serbian (Rosić) : metronymic from the female personal name Rosa, a pet form of Rozalija, Latin Rosalia.
- Slovenian (mainly westernmost Slovenia; Rosič) : probably a nickname from the dialect adjective ros ‘russet’ (see Ros 3).
- Bosnian, Croatian, and Serbian (Rošić) : unexplained.