spearn.[OE. spere, AS. spere; akin to D. & G. speer, OS. & OHS. sper, Icel. spjr, pl., Dan. spr, L. sparus.]1. A long, pointed weapon, used in war and hunting, by thrusting or throwing; a weapon with a long shaft and a sharp head or blade; a lance.(Chaucer.)They shall beat their swords into plowshares, and their spears into pruning hooks. (Micah iv. 3.)2. Fig.: A spearman.(Sir W. Scott.)3. A sharp-pointed instrument with barbs, used for stabbing fish and other animals.()4. A shoot, as of grass; a spire.()5. The feather of a horse. See Feather, n., 4.()6. The rod to which the bucket, or plunger, of a pump is attached; a pump rod.()Spear foot, the off hind foot of a horse. -- Spear grass. (Bot.) (a) The common reed. See Reed, n., 1. (b) meadow grass. See under Meadow. -- Spear hand, the hand in which a horseman holds a spear; the right hand. Crabb. -- Spear side, the male line of a family. Lowell. -- Spear thistle (Bot.), the common thistle (Cnicus lanceolatus).()v. t. To pierce with a spear; to kill with a spear; as, to spear a fish.()v. i. To shoot into a long stem, as some plants. See Spire.(Mortimer.)