Rościsław m
Polish: from an old Slavonic personal name composed of the elements rosts usurp, arrogate + slav glory (cf. SOBIESŁAW (SEE Sobiesław)).
Cognate: Russian, Czech: Rostislav.
Feminine forms: Polish: Rościsława. Czech: Rostislava.
Pet forms: Russian: Rostya m. Czech: Rost'a m, f; Rostek, Rostí(če)k m; Rostin(k)a, Rostuška f.
First names dictionary. 2012.