easting

n. direction to the east; moving to the east

The terms easting and northing are geographic Cartesian coordinates for a point. Easting refers to the Eastward measured distance (or the -coordinate), while northing refers to the Northward measured distance (or the -coordinate). The orthogonal coordinate pair are commonly measured in metres from a horizontal datum. This simple cartographic convention comes from a methodology for determining coordinates and areas, known as the method of latitudes and departures.
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(n.)
The distance measured toward the east between two meridians drawn through the extremities of a course; distance of departure eastward made by a vessel.
  

Eastward (that is from left to right) reading of grid values on a map. 1/3/73

Lecture d'ouest en est c'est-à-dire de gauche à droite de l'abscisse d'un carroyage sur une carte. 1/3/73

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