Other roughly equivalent titles and areas in medieval Eastern Europe included ban (bojan, vojin or bayan) and banate.A voi(e)vod(e) (literally, "leader of warriors" or "war leader", equivalent to the Latin "Dux Exercituum") was originally a military commander who stood, in a state's structure, next to the ruler.Words for "voivodeship" in various languages include the Ukrainian: воєводство; the Polish: województwo; the Romanian: voievodat; the Bulgarian: voivoda (войвода); the Serbian: vojvodina (војводина), vojvodstvo (војводство) or vojvodovina (војводовина); the Hungarian: vajdaság; the Belarusian: ваяводства (vajаvodstva); the Lithuanian: vaivadija.Though the word "voivodeship" (other spellings are "voievodship" and "voivodship") appears in English dictionaries such as the OED and Webster's, it is not in common general usage, and voivodeships in Poland and elsewhere are frequently referred to as "provinces".In the territory of modern Romania and Moldova, the regions of Wallachia, Moldavia and Transylvania were formerly voivodeships.