LEE-SIDE, all that part of a ship or boat which lies between the mast and the side farthest from the direction of the wind; or otherwise, the half of a ship, which is pressed down towards the water by the effort of the sails, as separated from the other half by a line drawn through the middle of her length. That part of the ship, which lies to windward of this line, is accordingly called the weather-side.
Thus admit a ship to be sailing southward, with the wind at east, then is her starboard, or right side, the lee-side; and the larboard, or left, the weather-side.