snood

Short definition from Wiktionary

Noun

1. 1
   A band or ribbon for keeping the hair in place, including the hair-band formerly worn in Scotland and northern England by young unmarried women.
2. 2
   A small hairnet or cap worn by women to keep their hair in place.
3. 3
   The flap of erectile red skin on the beak of a male turkey.
4. 4
   A short line of horsehair, gut, monofilament, etc., by which a fishhook is attached to a longer (and usually heavier) line; a snell.
5. 5
   A piece of clothing to keep the neck warm; neckwarmer.

Verb

1. 1
   To keep the hair in place with a snood.