from
The Collaborative International Dictionary of English v.0.48
Southing \South"ing\ (?; 277), n.
1. Tendency or progress southward; as, the southing of the
sun. --Emerson.
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2. The time at which the moon, or other heavenly body, passes
the meridian of a place.
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3. (Astron.) Distance of any heavenly body south of the
equator; south declination; south latitude.
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4. (Surv. & Navigation) Distance southward from any point
departure or of reckoning, measured on a meridian; --
opposed to {northing}.
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