n.
a. Having a feather-edge; also, having one edge thinner than the other, as a board; -- in the United States, said only of stuff one edge of which is made as thin as practicable. [ 1913 Webster ]
a.
Rise from the ground like feathered Mercury. Shak. [ 1913 Webster ]
Nonsense feathered with soft and delicate phrases and pointed with pathetic accent. Dr. J. Scott. [ 1913 Webster ]