Webster's Revised Unabridged Dictionary · 1913

Dizzy

Dizzy (diz"zy) , adjective

[Old English dusi, disi, desi, foolish, Anglo-Saxon dysig; akin to LG. dusig dizzy, OD. deuzig, duyzig, Old High German tusig foolish, OFries. dusia to be dizzy; LG. dusel dizziness, duselig, dusselig, Dutch duizelig, dizzy, Danish dosig drowsy, slepy, dose to make dull, drowsy, dos dullness, drowsiness, and to Anglo-Saxon dwas foolish, German thor fool. r71. Compare Daze, Doze.]

1.
Having in the head a sensation of whirling, with a tendency to fall; vertiginous; giddy; hence, confused; indistinct.
Alas! his brain was dizzy. — Drayton
2.
Causing, or tending to cause, giddiness or vertigo.
To climb from the brink of Fleet Ditch by a dizzy ladder. — Macaulay
3.
Without distinct thought; unreflecting; thoughtless; heedless.
The dizzy multitude. — Milton

Dizzy , transitive verb

To make dizzy or giddy; to give the vertigo to; to confuse.
If the jangling of thy bells had not dizzied thy understanding. — Sir W. Scott