means a moral whirlwind. (Latin, turbo, a whirlwind; Italian, tur&bgrave;are; French, troubler.) Disturb is from the same root. The idea pervades all such words as agitation, commotion, vexation, a tossing up and down, etc.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894
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