Where does “bandollier” come from?

bandollier (English) comes from Middle French bandoulliere, from Catalan bandolera, from Catalan bàndol, from Old Spanish bando.

Ancestry of “bandollier”, step by step

Step	Language	Word	Meaning
1	Middle French	bandoulliere	—
2	Catalan	bandolera	female equivalent of bandoler
3	Catalan	bàndol	band, group
4	Old Spanish	bando	—

bandollier — Etymology, Origin & Word History | Etymology Explorer