Webster’s Revised Unabridged Dictionary · 1913
Skeg
Skeg (skĕg), n. [Prov. E., also a stump of a branch, a wooden peg; cf. Icel. skōgr a wood, Sw. skog. Cf. Shaw.] 1. A sort of wild plum. [Obs.] Holland.
2. pl. A kind of oats. Farm. Encyc.
3. (Naut.) The after part of the keel of a vessel, to which the rudder is attached.