crinoline vs half-slip

crinoline

noun
  • Any of the hoops making up the framework used to support cladding over a boiler. 

  • A stiff fabric made from cotton and horsehair. 

  • A skirt stiffened with hoops. 

  • Netting placed around ships to guard against torpedoes. 

  • A stiff petticoat made from this fabric. 

half-slip

How often have the words crinoline and half-slip occurred in a corpus of books? (source: Google Ngram Viewer )