1.  The motley coat of a fool or buffoon.

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1589.  Nashe, Martins Months Minde, To the Reader, Wks. (Grosart), I. 166. When they shall put off their fooles coat.

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1599.  B. Jonson, Ev. Man out of Hum., III. i. Of as many colours, as ere you saw any fooles coat in your life.

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  transf. and fig.  1709.  H. Chandler, Effort agst. Bigotry, 17. Non-Conformists, Church-men … or whatever Fool’s Coat of Distinction their uncharitable envious Neighbours put upon them.

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1718.  Warder, True Amazons (ed. 2), 54. Their [the Wasps’] Fools Coat, and hoarse Voice, doth soon discover them.

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1735.  Pope, Donne Sat., IV. 220.

        Our Court may justly to our Stage give rules,
That helps it both to fools’ coats and to fools.

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  2.  (See quot.)

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a. 1700.  B. E., Dict. Cant. Crew, A Fool’s-Coat, a Tulip so called, striped with Red and Yellow.

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  3.  A name for the goldfinch.

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a. 1682.  Sir T. Browne, Birds Norfolk, Wks. 1852, III. 322. A kind of anthus, goldfinch, or fool’s coat, commonly called a draw-water, finely marked with red and yellow, and a white bill.

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  4.  A bivalve mollusc, Isocardia cor, better known as heart-shell (Cent. Dict.).

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