Webster's 1828 Dictionary
WEATHER-BOARD
n.That side of a ship which is towards the wind; the windward side. So in other words, weather signifies towards the wind or windward; as, in weather-bow, weather-braces, weather-gage, weather-lifts, weather-quarter, weather-shrouds, weather-side, weather-shore, etc.
WEATHER-BOARDING
n.The act of nailing up boards against a wall; or the boards themselves.
WEATHER-BOARDS
n.Pieces of plank placed in the ports of a ship, when laid up in ordinary.
Webster's 1913 Dictionary
WEATHER-BOARD
WEATHER-BOARD Weath "er-board `, v. t. (Arch. )
Defn: To nail boards upon so as to lap one over another, in order to exclude rain, snow, etc. Gwilt.
The Wordsmith Dictionary