nog vs spile

nog

verb
  • to fill in, as between scantling, with brickwork. 

  • to fasten, as shores, with treenails. 

noun
  • A wooden block, the size of a brick, built into a wall, as a hold for the nails of woodwork. 

  • A dark-skinned person; nig-nog. 

  • One of the square logs of wood used in a pile to support the roof of a mine. 

  • A treenail to fasten the shores. 

spile

verb
  • To drive piles into. 

  • To provide (a barrel, tree etc.) with a spile. 

  • To support by means of spiles. 

  • spoil. 

  • To plug (a hole) with a spile. 

  • To draw off (a liquid) using a spile. 

noun
  • A pile; a post or girder. 

  • A spigot or plug used to stop the hole in a barrel or cask. 

  • A spout inserted in a maple (or other tree) to draw off sap. 

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