Where does “baduan” come from?

baduan (Bikol Central) comes from Bikol Central bado, from Malay baju, from Classical Malay باجو, from Classical Persian بازو, from Old Persian 𐎲𐎠𐏀𐎢, from Proto-Iranian baHjúh, from Proto-Indo-Iranian bʰaHȷ́ʰúš, from Proto-Indo-European bʰāǵʰus — arm.