purview vs shortening

purview

noun
  • Range of understanding. 

  • The scope of a statute. 

  • The enacting part of a statute. 

  • Scope or range of interest or control. 

shortening

noun
  • Fat that is solid at room temperature, such as margarine or lard (not usually used of butter), used to make shortcrust pastry. 

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