Webster's Revised Unabridged Dictionary · 1913

Skeg

Skeg , noun

[Prov. English, also a stump of a branch, a wooden peg; compare Icelandic sk{not transcribed}gr a wood, Swedish skog. Compare Shaw.]

1.
A sort of wild plum. [Obsolete] — Holland
2.
A kind of oats. — Farm. Encyc
3.
(Nautical) The after part of the keel of a vessel, to which the rudder is attached.