An Etymological Dictionary of the German Language/Annotated/Sulze
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Sulze, Sülze, feminine, ‘pickle, brine, pickled or salted meat,’ from Middle High German sulze, sülze, Old High German sulza (from *sultja), feminine, ‘salt water, pickled sausage,’ compare Old Saxon sultia, ‘salt water,’ Dutch zult, ‘pickled meat’; undoubtedly a graded form of Salz. From the Teutonic word is derived Italian solcio, ‘preserve, pickles.’