\Sprag\, n. [Cf. Icel. spraka a small flounder.]
(Zo["o]l.)
A young salmon. [Prov. Eng.]

\Sprag\, n. [See {Spray} a branch.]
A billet of wood; a piece of timber used as a prop.

\Sprag\, v. t. [imp. & p. p. {Spragged}; p. pr. & vb. n.
{Spragging}.]
1. To check the motion of, as a carriage on a steep grade, by
   putting a sprag between the spokes of the wheel. --R. S.
   Poole.
2. To prop or sustain with a sprag.

\Sprag\, a.
See {Sprack}, a. --Shak.