breastpin vs brooch

breastpin

noun
  • An ornamental pin attached to clothing in a person's upper chest area; a brooch. 

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. 

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