I always knew it sounded evil, but evidently the word itself was derived from German.
The modern English word 'evil' (Old English Yfel) and its cognates such as the German 'Übel' are widely considered to come from a Proto-Germanic reconstructed form *Ubilaz, comparable to the Hittite huwapp- ultimately from the Proto-Indo-European form *wap- and suffixed zero-grade form *up-elo-. Other later Germanic forms include Middle English evel, ifel, ufel Old Frisian evel (adjective & noun), Old Saxon ubil, Old High German ubil, and Gothic ubils. The root meaning is of obscure origin though shown to be akin to modern English 'over' and modern German 'über' (OE ofer) and 'up' (OE up, upp) with the basic idea of "transgressing".
Look how many damn German words they have for evil or something like it! I gotta get there quick! I bet they let you kill babies too.