selvedge

{ } n. [ Self + edge, i. e., its own proper edge; cf. OD. selfegge. ] 1. The edge of cloth which is woven in such a manner as to prevent raveling. [ 1913 Webster ]

2. The edge plate of a lock, through which the bolt passes. Knight. [ 1913 Webster ]

3. (Mining.) A layer of clay or decomposed rock along the wall of a vein. See Gouge, n., 4. Raymond. [ 1913 Webster ]