Webster's Revised Unabridged Dictionary · 1913

Prong

Prong , noun

[Compare Dutch prangen to pinch, press, LG. prange a stick, or Welsh procio to thrust, English prowl, pang.]

1.
A sharp-pointed instrument.
Prick it on a prong of iron. — Sandys
2.
The tine of a fork, or of a similar instrument; as, a fork of two or three prongs.
3.
(a) (Zoology) A sharp projection, as of an antler.
(b)
(Zoology) The fang of a tooth.