Thickly in example sentence
A cupboard, with a few moldy sailor's clothes; on the table a tin plate and a Bible, eaten away by damp; in a corner a few tools, a spade, pickaxe, two fowling-pieces, one of which was broken; on a plank, forming a shelf, stood a barrel of powder, still untouched, a barrel of shot, and several boxes of caps, all thickly covered with dust, accumulated, perhaps, by many long years.