devil
獝 centers on a malevolent supernatural being: a devil or demon. The given meaning is narrow, so treat it as a rare character for a specific evil creature.
獝 combines the animal radical 犭 with 矞, which likely contributes a phonetic element. The exact historical development is uncertain, and the character is rare.
A wild animal radical 犭 beside a strange, complex shape 矞 suggests a monstrous, devilish beast lurking in the shadows.
For キツ, imagine a devilish kitsune (キツネ, fox) spirit: the first part キツ cues the reading, and the animal radical 犭 fits the fox shape.