clapstick vs weatherboard

clapstick

noun
  • A clapperboard. 

  • A kind of drumstick used by striking one against another, to maintain rhythm in Aboriginal voice chants. 

weatherboard

noun
  • Any of a series of horizontal boards used to cover the exterior of a timber-framed building; clapboard. 

  • The windward side of a vessel. 

  • A plank placed over an opening to keep out driven water. 

verb
  • To cover with a weatherboard. 

How often have the words clapstick and weatherboard occurred in a corpus of books? (source: Google Ngram Viewer )