An Etymological Dictionary of the German Language/rauschen
rauschen, vb., ‘to rustle, roar, be excited,’ from MidHG. rûschen (riuschen), ‘rustle, roar, swell, hurry along’; corresponding to Du. ruischen, ‘to rustle,’ E. to rush (MidE. ruschen).
rauschen, vb., ‘to rustle, roar, be excited,’ from MidHG. rûschen (riuschen), ‘rustle, roar, swell, hurry along’; corresponding to Du. ruischen, ‘to rustle,’ E. to rush (MidE. ruschen).