Where does “Bordean” come from?

Bordean (Romanian) comes from Romanian bord, from French bord, from Old French bord, from Frankish bord, from Proto-Germanic burdą, from Proto-Indo-European bʰers- — top, tip, point.

Ancestry of “Bordean”, step by step

Step	Language	Word	Meaning
1	Romanian	bord	side of a ship's deck
2	French	bord	border, edge, limit; boundary
3	Old French	bord	side of a ship, edge; a border
4	Frankish	bord	plank, board; side of a ship or vessel; board,...
5	Proto-Germanic	burdą	board, plank; table
6	Proto-Indo-European	bʰers-	top, tip, point

Every word from Proto-Indo-European bʰers- →Every word from Proto-Germanic burdą →Every word from Frankish bord →