nog vs treenail

nog

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. 

verb
  • to fasten, as shores, with treenails. 

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

treenail

noun
  • A wooden peg or pin used as a fastener. 

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