[f. SUM v.1 + -ER1.] One who sums or adds; esp. in summer-up, one who or that which sums up; colloq. or dial. one who does sums, an arithmetician.

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1611.  Cotgr., Nombreur, a numberer, reckoner, teller, summer, counter.

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1643.  Digby, Observ. Relig. Med. (1644), 50. This last great day (the summer up of all past dayes).

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1828.  D’Israeli, Chas. I., I. iii. 29. That aptitude … which made him so skilful a summer-up of arguments.

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1830.  Blackw. Mag., XXVIII. 140. A summer-up of the tottle of the whole.

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1863–5.  Staton, Rays Loominary (1867), 68. Awm but a bad summer at th’ best o toimes.

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