spelk vs woodchip

spelk

noun
  • A splinter, usually of wood. 

  • A rod or switch. 

  • A wooden splinter caught under the skin. 

  • Unusably short lengths of fibre-reinforced material, such as prepreg. 

verb
  • To use a spelk in or on. 

woodchip

noun
  • A small mechanically produced piece (chip) of wood, generally from 0.5 to 10 cm in diameter, used primarily as raw material for pulp, paper and construction boards, as well as fuel and mulch. 

  • A small fibre of wood; especially such material as used to make ingrain wallpaper, aka woodchip wallpaper. See Wikipedia article on ingrain wallpaper. 

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