An Etymological Dictionary of the German Language/Annotated/melk

by Friedrich Kluge

melk, adjective, ‘giving milk, milch,’ from the equivalent Middle High German mële, mëlch, Old High German mëlch (equivalent to Anglo-Saxon mëlc), adjective; compare Old Icelandic mjolkr, milkr, Middle English milche, English milch, adjective (Anglo-Saxon *mylče is wanting); a verbal adjective from melken.