Where does “avieso” come from?

avieso (Spanish) comes from Latin aversus, from Latin āvertō, from Latin ab-, from Latin āb, from Proto-Germanic *ab, from Proto-Indo-European apó.

avieso (Spanish): wicked, evil

Definitions

Step	Language	Word	Meaning
1	Latin	aversus	turned or facing away; rear; averse
2	Latin	āvertō	to turn away, turn off, avert; to avoid, divert, deviate
3	Latin	ab-	from, away, away from; off; at a distance
4	Latin	āb	from, away from, out of
5	Proto-Germanic	*ab	—
6	Proto-Indo-European	apó	—