Clapboard (noun)

1. A type of wooden siding used for covering the exterior of houses, consisting of long, thin boards with one edge thicker than the other, so that they overlap when fitted together.
2. A long, thin board used as siding on a building, typically overlapping one another.

Origin:

From the middle english clappebord, from the old english clæppelbord ("board for clapping clothes"), from clæppel ("board for clapping clothes") + bord ("board"). the term clapboard was first used in the 16th century to refer to a type of wooden siding used for covering the exterior of houses.

Examples:

1. The house was sided with clapboard.
2. The clapboard siding needed to be painted.
3. He was installing new clapboard on the house.
4. The clapboard was weathered and needed to be replaced.
5. The clapboard was nailed to the house's frame.