Where does “Brănișteanu” come from?

Brănișteanu (Romanian) comes from Romanian Brănești, from Romanian Bran, from Old Church Slavonic брань, from Proto-Slavic bȏrnь, from Proto-Balto-Slavic borni-, from Proto-Indo-European bʰorH-.

Ancestry of “Brănișteanu”, step by step

Step	Language	Word	Meaning
1	Romanian	Brănești	—
2	Romanian	Bran	—
3	Old Church Slavonic	брань	battle; dispute
4	Proto-Slavic	bȏrnь	resistance, standoff
5	Proto-Balto-Slavic	borni-	—
6	Proto-Indo-European	bʰorH-	—

Every word from Proto-Indo-European bʰorH- →Every word from Proto-Balto-Slavic borni- →Every word from Proto-Slavic bȏrnь →