Friedrich Kluge, An Etymological Dictionary of the German Language (1891)
“ Schmalte, feminine, ‘smalt,’ Modern High German only, formed from Italian smalto, or French smalt, ‘glass of a deep blue.’ Schmalz, neuter, ‘fat, grease, suet,’ from Middle High German and Old High German smalz, neuter, ‘melted fat for cooking, grease, butter’ (compare Italian dialectic smalzo, ‘butter’) ; allied to schmelzen, ‘to melt,’ which, in the sense ‘to cook with fat,’ is derived from Schmalz. Schmant, masculine (Livonian, Low German, and Hessian) , ‘cream,’ from the equivalent late Middle High German smant, borrowed in the 15th century from Slavonic; compare Bohemian smant. ”
