SOUTHING
Source: 566, 567
southing. Southing, a. approaching or going to the south
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South″ing (?; 277), n. 1. 1. Tendency or progress southward; as, the southing of the sun. Emerson.
2. 2. The time at which the moon, or other heavenly body, passes the meridian of a place.
3. 3. (Astron.) Distance of any heavenly body south of the equator; south declination; south latitude.
4. 4. (Surv. & Navigation) Distance southward from any point departure or of reckoning, measured on a meridian; — opposed to northing.