the.com/evil

means Profoundly immoral or malevolent; the quality of deliberately causing harm or wickedness.

from From Old English 'yfel,' which sat squarely in the Germanic family — a cousin of Dutch 'euvel' and German 'Übel.' The deeper root is thought to mean something like 'exceeding due limits' or 'overstepping,' so the oldest sense leaned toward 'bad' in a broad way: defective, unpleasant, of poor quality. The narrowing into capital-E moral darkness — the sense we now reach for first — came later, as the word grew teeth.