An Etymological Dictionary of the German Language/Annotated/Schande
Schande, feminine, ‘disgrace, infamy,’ from the equivalent Middle High German schande, Old High German scanta, feminine; corresponding to the equivalent Gothic skanda, Anglo-Saxon sčęǫnd, Dutch schande, feminine; an abstract form from the root skam (see Scham), with the change of m into n before d, as in Rand. Compare further the participle in da- formed from the same root, Old High German scant (see laut, fatt, and zart); from this is derived Modern High German schänden, Middle High German schęnden, Old High German scęnten, ‘to dishonour, ravish.’