Sprag /(sprăg)/

1. A young salmon. (Zool.) [Prov. Eng.]

1. A billet of wood; a piece of timber used as a prop.

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.
2. To prop or sustain with a sprag.

1. See Sprack, a.