djellaba vs peignoir

djellaba

noun
  • A loose-fitting, ankle-length hooded robe worn by men in North Africa. 

peignoir

noun
  • A cape worn to protect the clothes at the barbers / hairdressers 

  • A long outer garment for women, usually sheer and made of chiffon and often sold with matching nightgown, negligee or underwear 

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