eiderdown

• eider down

From eider +‎ down.

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eiderdown (countable and uncountable, plural eiderdowns)

1. (uncountable) The down of the eider duck, used for stuffing pillows and quilts.
   • 1929, Robert Dean Frisbee, The Book of Puka-Puka, Eland, published 2019, page 80:

     A great sea lifted us high and, crashing down with a deafening roar, carried us swiftly along on light foam as soft as eiderdown.

2. (countable) A quilt stuffed with this down.
   • 1851 November 14, Herman Melville, “chapter 3”, in Moby-Dick; or, The Whale, 1st American edition, New York, N.Y.: Harper & Brothers; London: Richard Bentley, →OCLC:

     The landlord was near spraining his wrist, and I told him for heaven’s sake to quit—the bed was soft enough to suit me, and I did not know how all the planing in the world could make eider down of a pine plank.

   • 1919, W[illiam] Somerset Maugham, “chapter 11”, in The Moon and Sixpence, [New York, N.Y.]: Grosset & Dunlap Publishers […], →OCLC:

     I entered. It was a very small room, overcrowded with furniture of the style which the French know as Louis Philippe. There was a large wooden bedstead on which was a billowing red eiderdown, and there was a large wardrobe, a round table, a very small washstand, and two stuffed chairs covered with red rep.

   • 1920, Katherine Mansfield [pseudonym; Kathleen Mansfield Murry], “Revelations”, in Bliss and Other Stories, London: Constable & Company, published 1920, →OCLC, page 263:

     She jerked up in bed, clutching the eiderdown; her heart beat. What could it be?