burka vs hijab

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. 

hijab

noun
  • A traditional headscarf worn by Muslim women, covering the hair and neck. 

  • The practice, among Muslim women, of covering the body after the age of puberty in front of non-related adult males. 

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