Knag (?), n. [Cf. Prov. G. knagge a knot in wood, Sw. knagg, Dan. 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. Halliwell.