[f. LAY v.1 + -ING2.] That lays: chiefly said of hens.

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1591.  Percivall, Sp. Dict., Ponedera gallina, a laying hen.

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1884.  E. P. Roe, Nat. Ser. Story, ii. in Harper’s Mag., Jan., 288/2. I can keep my laying hens warm even in zero weather.

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