silverly

— "This river does not see the naked sky, Till it begins to progress silverly Around the western border of the wood, Whence, from a certain spot, its winding flood Seems at the distance like a crescent moon: And in that nook, the very pride of June, Had I been used to pass my weary eves; The rather for the sun unwilling leaves So dear a picture of his sovereign power, And I could witness his most kingly hour, When he doth lighten up the golden reins, And paces leisurely down amber plains His snorting four.