pawning vs skiving

pawning

noun
  • The act by which something is pawned. 

skiving

noun
  • A piece made in skiving (paring or splitting) leather, especially the part from the inner, or flesh, side. 

  • A type of machining that skives metal, with various applications including gear cutting. 

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