sprinkler head vs withe

sprinkler head

noun
  • A heat-activated device that sprays water in the event of a fire, usually mounted on a ceiling. 

withe

noun
  • A partition between flues in a chimney. 

  • An iron attachment on one end of a mast or boom, with a ring, through which another mast or boom is rigged out and secured. 

  • An elastic handle to a tool to save the hand from the shock of blows. 

  • A band of twisted twigs. 

  • A flexible, slender twig or shoot, especially when used as a band or for binding; a withy. 

verb
  • To bind with withes. 

  • To beat with withes. 

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