cotillion vs crinoline

cotillion

noun
  • A kind of woollen material for women's skirts. 

  • The music regulating the cotillion. 

  • A bold dance performed in groups of eight where women lift their skirts to display their ankles. 

verb
  • To dance the cotillion. 

crinoline

noun
  • A stiff fabric made from cotton and horsehair. 

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

  • A skirt stiffened with hoops. 

  • Netting placed around ships to guard against torpedoes. 

  • A stiff petticoat made from this fabric. 

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