cotillion vs undergarment

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. 

undergarment

noun
  • Any garment worn underneath others, especially one worn next to the skin; an item of underwear. 

  • Temple garments worn by the followers of the Church of Jesus Christ of Latter-day Saints. 

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