dizzy

Etymology 1

From Middle English dysy, desy, dusi, from Old English dysiġ (“stupid, foolish”), from Proto-West Germanic *dusīg (“stunned; dazed”), likely from the root of Proto-Germanic *dwēsaz (“foolish, stupid”). Akin to West Frisian dize (“fog”), Dutch deusig, duizig (“dizzy”), duizelig (“dizzy”), German dösig (“sleepy; stupid”).

adj

1. Experiencing a sensation of whirling and of being giddy, unbalanced, or lightheaded.
   I stood up too fast and felt dizzy.
2. Producing giddiness.
   We climbed to a dizzy height.
3. Empty-headed, scatterbrained or frivolous; ditzy.
   My new secretary is a dizzy blonde.
4. (UK dialectal, Yorkshire) simple, half-witted.
   1952 Albert Lyon Hoy, An Etymologal Glossary of the East Yorkshire Dialect Them as diz ’at is dizzy. Those who do that are half-witted.

verb

1. (transitive) To make (someone or something) dizzy; to bewilder.
   So ramshackle was the locals' attempt at defence that, with energetic wingers pouring into the space behind panicked full-backs and centre-halves dizzied by England's movement, it was cruel to behold at times. The contest did not extend beyond the half-hour mark. September 7, 2012, Dominic Fifield, “England start World Cup campaign with five-goal romp against Moldova”, in The Guardian

Etymology 2

noun

1. (slang, automotive) A distributor (device in internal combustion engine).
   A service exchange distributor usually needs to be ordered by a motor factor and cost £150-200! I would suggest you use the SD1 dizzy body/cap etc but change the trigger mechanism to a modern electronic/breakerless unit such as the Newtronic unit. 2005, Roger Williams, How to Give Your MGB V8 Power, page 201