Tendency or progress southward; as, the southing of the sun.
The time at which the moon, or other heavenly body, passes the meridian of a place.
Distance of any heavenly body south of the equator; south declination; south latitude.
4. Surv. & Navigation
Distance southward from any point departure or of reckoning, measured on a meridian; -- opposed to northing.
© Webster 1913.