Webster's Revised Unabridged Dictionary · 1913

Splinter

Splinter , transitive verb

[Compare LG. splittern, splinteren. See Splint, n., Split.]

1.
To split or rend into long, thin pieces; to shiver; as, the lightning splinters a tree.
After splintering their lances, they wheeled about, and... abandoned the field to the enemy. — Prescott
2.
To fasten or confine with splinters, or splints, as a broken limb. — Bp. Wren

Splinter , intransitive verb

To become split into long pieces.

Splinter , noun

[See Splinter, v., or Splint, n.]

A thin piece split or rent off lengthwise, as from wood, bone, or other solid substance; a thin piece; a sliver; as, splinters of a ship's mast rent off by a shot.
Collocations (1)
Splinter bar , (a) A crossbar in a coach, which supports the springs (b) The bar to which the traces are attached; a roller bolt; a whiffletree.