Definition of muesli
: a breakfast cereal of Swiss origin consisting of rolled oats, nuts, and fruit
From the M-W Editors
Origin and Etymology of muesli
borrowed from Swiss German Müesli, diminutive of Mues “soft food, mush, pulp,” going back to Old High German muos, going back to West Germanic *mōsa- “food, soft food” (whence Old Saxon, Old English & Old Frisian mōs “food, prepared food”), probably from *mōt-, lengthened grade derivative of *mati- “food” + a suffixal -t- — more at meat
First Known Use: 1939
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