A headrail was an Anglo-Saxon head covering consisting of a piece of fabric draped over the head and held in place by a head band, similar to a short wimple. Research Headrail
A wimple is a covering of silk or linen for the neck, chin and the sides of the face, usually worn out of doors, and usually held in place by some form of head band. Wimples were formerly worn in the Middle Ages by women, and are still worn by some nuns today. Research Wimple
 
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