An Etymological Dictionary of the German Language/Annotated/Schade
Schade, neuter, ‘damage, harm, injury,’ from Middle High German schade, Old High German scado, masculine, ‘damage, destruction, disadvantage’; corresponding to the equivalent Dutch schade Old Icelandic skaðe, masculine. Further Old Icelandic skaðe, Old High German scado, Old Saxon scaðo, Anglo-Saxon sčęaþa, masculine, ‘robber, foe,’ allied to Gothic skaþjan, ‘to injure, act unjustly,’ Anglo-Saxon sčęþþan, ‘to injure,’ Old High German scadôn, Middle High German and Modern High German schaden. An Aryan root skā̆́th, corresponding to the Teutonic root skaþ, appears in Greek ἀσκηθής, ‘unscathed.’