·p.pr. & ·vb.n. of South.
II. Southing ·noun Tendency or progress southward; as, the southing of the sun.
III. Southing ·noun The time at which the moon, or other heavenly body, passes the meridian of a place.
IV. Southing ·noun Distance of any heavenly body south of the equator; south declination; south latitude.
V. Southing ·noun Distance southward from any point departure or of reckoning, measured on a meridian;
— opposed to northing.