\Brail\, n. [OE. brayle furling rope, OF. braiol a band
placed around the breeches, fr.F. braies, pl., breeches,
fr.L. braca, bracae, breeches, a Gallic word; cf. Arm.
bragez. Cf. {Breeches}.]
1. (Falconry) A thong of soft leather to bind up a hawk's
   wing.
2. pl. (Naut.) Ropes passing through pulleys, and used to
   haul in or up the leeches, bottoms, or corners of sails,
   preparatory to furling.
3. A stock at each end of a seine to keep it stretched.

\Brail\, v. t. (Naut.)
To haul up by the brails; -- used with up; as, to brail up a
sail.