lugsail

She began to hoist her lugsail in a dazed, shiftless fashion, while our two boats drifted slowly to leeward.

The light was growing each moment, the breeze dying fast, and presently the damp lugsail slatted against the mast.

There's a nice southwester blowing now, and under the big lugsail we ought to overhaul the canoe before he does so.

With the wind astern, your head of hair will be as good as a lugsail; and with the wind ahead, we can reef it hard.