Etymology
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winkle (n.)
edible mollusk, 1580s, shortening of periwinkle (n.2).
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Rip Van Winkle 

"person out of touch with current conditions," 1829, the name of the character in Washington Irving's popular Catskills tale (published 1819) of the henpecked husband who sleeps enchanted for 20 years and finds the world has forgotten him.

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