Soft, fluffy, and covered with fine hair or feathers, like the fluffy part of a feather or baby chick.
From Middle English 'downe,' derived from Old Norse 'dúnn,' meaning soft feathers or down. The suffix '-y' makes it an adjective meaning 'having the quality of.'
Duck down is so effective at trapping warm air that it's used in the most expensive winter coats and sleeping bags—nature's genius insulation!
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