Staub, n., ‘dust, spray,’ from the equiv. MidHG. and OHG. stoup (gen. stoubes), m.; also, by a different formation, ModHG. Gestüpp, MidHG. stüppe, OHG. stuppi, ‘dust,’ which, like Goth. stubjus, is connected with stieben, ‘to fly as dust, scatter.’