An Etymological Dictionary of the German Language/Schauer
Appearance
Schauer (1.), m., ‘penthouse, shed’; see Scheuer.
Schauer (2.), m., ‘shower,’ from MidHG. schûr, OHG. scâr, m., ‘storm, hail’; comp. OSax. skûr, m., ‘weather, shower,’ Du. schoer, ‘pouring rain,’ AS. sčûr, E. shower, and the equiv. OIc. skúr; Goth. only skura windis, ‘gale.’ Origin obscure.