goring vs riddling

goring

noun
  • A piece of cloth cut diagonally to increase its apparent width. 

  • The act by which something is gored; a wound inflicted by a horn, usually the horn of a bull in the context of bullfighting 

adj
  • Cut gradually sloping, so as to be broader at the clew than at the earing of a sail. 

riddling

noun
  • Material removed by riddling, or sieving. 

  • The posing or solving of a riddle. 

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