The Collaborative International Dictionary of English v.0.48:
Edge \Edge\ ([e^]j), n. [OE. eg, egge, AS. ecg; akin to OHG.
ekka, G. ecke, Icel. & Sw. egg, Dan. eg, and to L. acies, Gr.
'akh` point, Skr. a[,c]ri edge. [root]1. Cf. Egg, v. t.,
Eager, Ear spike of corn, Acute.]
1. The thin cutting side of the blade of an instrument; as,
the edge of an ax, knife, sword, or scythe. Hence,
(figuratively), That which cuts as an edge does, or wounds
He which hath the sharp sword with two edges. --Rev.
Whose edge is sharper than the sword. --Shak.
2. Any sharp terminating border; a margin; a brink; extreme
verge; as, the edge of a table, a precipice.
Upon the edge of yonder coppice. --Shak.
In worst extremes, and on the perilous edge
Of battle. --Milton.
Pursue even to the very edge of destruction. --Sir
3. Sharpness; readiness or fitness to cut; keenness;
intenseness of desire.
The full edge of our indignation. --Sir W.
Death and persecution lose all the ill that they can
have, if we do not set an edge upon them by our
fears and by our vices. --Jer. Taylor.
4. The border or part adjacent to the line of division; the
beginning or early part; as, in the edge of evening. "On
the edge of winter." --Milton.
Edge joint (Carp.), a joint formed by two edges making a
Edge mill, a crushing or grinding mill in which stones roll
around on their edges, on a level circular bed; -- used
for ore, and as an oil mill. Called also Chilian mill.
Edge molding (Arch.), a molding whose section is made up of
two curves meeting in an angle.
(a) (Carp.) A plane for edging boards.
(b) (Shoemaking) A plane for edging soles.
Edge play, a kind of swordplay in which backswords or
cutlasses are used, and the edge, rather than the point,
Edge rail. (Railroad)
(a) A rail set on edge; -- applied to a rail of more depth
(b) A guard rail by the side of the main rail at a switch.
Edge railway, a railway having the rails set on edge.
Edge stone, a curbstone.
(a) Any tool or instrument having a sharp edge intended
(b) A tool for forming or dressing an edge; an edging
To be on edge,
(a) to be eager, impatient, or anxious.
(b) to be irritable or nervous.
(a) See to be on edge.
(b) See to set the teeth on edge.
To set the teeth on edge,
(a) to cause a disagreeable tingling sensation in the
teeth, as by bringing acids into contact with them.
(b) to produce a disagreeable or unpleasant sensation; to
annoy or repel; -- often used of sounds; as, the
screeching of of the subway train wheels sets my teeth
[1913 Webster +PJC]