Good luck or fortune; a Yiddish expression used in English to wish someone well.
From Yiddish 'glick' or 'gluck,' derived from Middle High German 'gelucke' (luck), ultimately from Proto-Germanic 'ga-' plus 'luk' meaning to shut or close (as in sealing one's fate).
Gluck is Yiddish's gift to English—it shows how languages crash into each other and create new ways to express hope, with roots stretching back to medieval German beliefs about sealed fates!
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