Obs. rare1. [as if f. L. *fatuōsus, f. fatuus FATUOUS + -ITY.] = FATUITY.

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1681.  Glanvill, Sadducismus, I. 90. Which Opinion, tho’, at the very Sight, it appears very ridiculous, yet it is stiffly held by the Maintainers of it, and that not without some Fatuosity and Superciliousness.

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