Where does “Barbara” come from?

Barbara (Latin) comes from Latin barbarus, from Ancient Greek βάρβαρος, from Proto-Indo-European balb-.

Barbara (Latin): the name of one of the more abominable prisons of the Grand Châtelet of Paris

Definitions

Step	Language	Word	Meaning
1	Latin	barbarus	foreign; savage; uncivilized
2	Ancient Greek	βάρβαρος	non-Greek-speaking, foreign; barbaric, brutal,...
3	Proto-Indo-European	balb-	—