The Collaborative International Dictionary of English v.0.48:
Splinter \Splin"ter\, v. t. [imp. & p. p. Splintered; p. pr. &
vb. n. Splintering.] [Cf. 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.
2. To fasten or confine with splinters, or splints, as a
broken limb. --Bp. Wren.