An Etymological Dictionary of the German Language/Schimmer
Schimmer, m., ‘glimmer,’ early ModHG., formed from LG. and Du. schemeren, ‘to glimmer, gleam.’ This is connected, like MidHG. schîme, ‘glimmer, lustre,’ OHG. scîmo, Goth. skeima, ‘light, lamp,’ with the root skī̆, ‘to shine, glitter’; comp. MidE. schimeren, ‘to shimmer,’ E. shimmer, E. shim, ‘white spot,’ Swed. skimra (see Schemen).