subs. (common).—A question or clause added to a geometrical problem, an Act of Parliament, an examination paper, &c.

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  1852.  DICKENS, Bleak House, xxxix. Vholes finally adds, by way of RIDER to this declaration of his principles … perhaps Mr. C. will favour him with an order on his agent.

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  1885.  Report of Committee of Council on Education in Scotland for 1884, 285. They showed a very satisfactory knowledge of Euclid’s propositions, and a very creditable proportion of students worked a considerable number of the RIDERS.

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  2.  See RIDE, verb. 1.

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  3.  (old).—A Dutch coin with a man on horseback, worth about twenty-seven shillings: also a Scots gold piece issued by James VI.

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  1647.  FLETCHER, The Woman’s Prize, i. 2.

        His mouldy money? half a dozen RIDERS,
That cannot sit, but stampt fast to their Saddles?

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  4.  (old).—A commercial traveller; a BAGMAN (q.v.).

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  1810.  CRABBE, The Borough, iv. The come to us as RIDERS in a trade.

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  1825.  LAMB, Letters, cxii. A RIDER in his youth, travelling for shops.

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