comforter vs headscarf

comforter

noun
  • A person who comforts someone who is suffering. 

  • A pacifier. 

  • A padded cover for a bed, duvet, continental quilt. 

headscarf

noun
  • A more or less square piece of material worn over the head, typically by women, often to protect the hair, or for religious reasons. 

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