Emily Dickinson Lexicon

DIZ'ZY, a. [Sax. dysi or dysig, foolish; dysignesse, folly; dysian, to be foolish; gedisigan, to err; G. dusel, dizziness; duselig, dizzy; D. deuzig, stupid; dyzig, misty, hazy; Dan. taasse, a foolish person; qu. döser, to make sleepy.]

1. Giddy; having a sensation of whirling in the head, with instability or proneness to fall; vertiginous.
2. Causing giddiness; as, a dizzy highth.
3. Giddy; thoughtless; heedless; as, the dizzy multitude. – Milton.