brooch vs cummerbund

brooch

noun
  • A piece of ornamental jewellery having a pin allowing it to be fixed to garments worn on the upper body. 

  • A painting all of one colour, such as a sepia painting. 

verb
  • To adorn as with a brooch. 

cummerbund

noun
  • A broad sash, especially one that is pleated lengthwise and worn as an article of formal dress, as around a man's waist together with a tuxedo or dinner jacket. 

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