One who has corn to sell.

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1580.  North, Plutarch (1676), 707. These Corn-masters bringing a sample of their Corn in a Dish or Napkin to shew you … by that little do sell all that they have.

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1625.  Bacon, Ess., Riches (Arb.), 235. A Nobleman … A Great Grasier, A Great Sheepe-Master … A Great Corne-Master.

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1638.  Penkethman, Artach., K iij. The uncharitable greedinesse, or unconscionable hoording of Corne-Masters and Farmers.

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1667.  Ld. Orrery, State Lett. (1743), II. 262.

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