Knag
Knag (nag) , noun
[Compare Prov. German knagge a knot in wood, Swedish knagg, Danish knag a hook to hand clothes on, a bracket; Gael. & Ir. cnag peg, knob.]
1.
A knot in wood; a protuberance. — Wright
2.
A wooden peg for hanging things on. — Wright
3.
The prong of an antler. — Holland
4.
The rugged top of a hill. [Provincial English] — Halliwell