Where does “balor” come from?

balor (Old Portuguese) comes from Latin pallor, from Latin palleō, from Proto-Indo-European pel- — to cover, to wrap; skin, hide, cloth; to fold.

Ancestry of “balor”, step by step

Step	Language	Word	Meaning
1	Latin	pallor	a pale color, paleness, wanness, pallor;...
2	Latin	palleō	to be pale; to turn pale, blanch
3	Proto-Indo-European	pel-	to cover, to wrap; skin, hide, cloth; to fold