clapboard
noun /ˈklæpbɔːd/
/ˈklæbərd/
(especially North American English) (also weatherboard British and North American English)
[uncountable]- one of a series of long, narrow, pieces of wood, each with one edge thicker than the other. They are fixed to the outside walls of a house, going from side to side, with the bottom of one over the top of the one below, to cover the wall and protect it from rain and windWord Originearly 16th cent. (denoting a piece of oak used for barrel staves or skirting board): partial translation of Low German klappholt ‘barrel stave’, from klappen ‘to crack’ + holt ‘wood’.