The Collaborative International Dictionary of English v.0.48:
Edge \Edge\, v. i.
1. To move sideways; to move gradually; as, edge along this
2. To sail close to the wind.
I must edge up on a point of wind. --Dryden.
To edge away or To edge off (Naut.), to increase the
distance gradually from the shore, vessel, or other
To edge down (Naut.), to approach by slow degrees, as when
a sailing vessel approaches an object in an oblique
direction from the windward.
To edge in, to get in edgewise; to get in by degrees.
To edge in with, as with a coast or vessel (Naut.), to
advance gradually, but not directly, toward it.