pantaloons vs pinafore

pantaloons

noun
  • An article of clothing covering each leg separately, that covers the area from the waist to the ankle. 

pinafore

noun
  • A sleeveless dress, often similar to an apron, generally worn over other clothes, and most often worn by young girls as an overdress. 

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