Dementor etymology in English

English word dementor comes from Latin mens (Intellect. Mind. Reasoning, judgement.), Latin demento (I bewitch. I delude. I make mad or crazy.)

Dictionary entry	Language	Definition
mens	Latin (lat)	Intellect. Mind. Reasoning, judgement.
demento	Latin (lat)	I bewitch. I delude. I make mad or crazy.
demens	Latin (lat)	Out of one's mind or senses; mad, raving, foolish, insane, reckless.
dementor	English (en)	An evil and fearsome creature.

Dementor etymology