/pêrun/
PodrijetloUltimately from Proto-Slavic *Perunъ.
ObliciPȅrun(animate, canonical, masculine) · Пе̏рун(Cyrillic) · Pȅrun(nominative, singular) · Pȅruna(genitive, singular) · Perunu(dative, singular) · Peruna(accusative, singular) · Pȅrune(singular, vocative) · Perunu(locative, singular) · Perunom(instrumental, singular)
Izvor: Wiktionary