dudou vs waist

dudou

noun
  • A traditional Chinese female undergarment, usually made of silk, covering the breasts and belly, and tied at the neck and waist; a Chinese underbodice. 

  • Its equivalents in Vietnam and other East Asian countries. 

waist

noun
  • A part of a piece of clothing that covers the waist. 

  • That part of the upper deck of a ship between the quarterdeck and the forecastle. 

  • The middle portion of the hull of a ship or the fuselage of an aircraft. 

  • The part of the body between the pelvis and the stomach. 

  • The narrow connection between the thorax and abdomen in certain insects (e.g., bees, ants and wasps). 

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