burka vs pinafore

burka

noun
  • An Islamic garment that covers the whole body, which has a net screen covering the eyes so they cannot be seen, and is worn by women. 

  • A dress made from felt or karakul (the short curly fur of young lambs of the breed of that name), traditionally worn by men of the Caucasus region. 

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 burka and pinafore occurred in a corpus of books? (source: Google Ngram Viewer )