Definify.com
Webster 1913 Edition
Northing
North′ing
,Noun.
 1. 
(Surv. & Navigation) 
Distance northward from any point of departure or of reckoning, measured on a meridian; – opposed to 
southing
. 2. 
(Astron.) 
The distance of any heavenly body from the equator northward; north declination. 
Webster 1828 Edition
Northing
NORTH'ING
,Noun.
 1.
 The motion or distance of a planet from the equator northward.As the tides of the sea obey the southing and northing of the sea--
2.
 Course or distance northward of the equator.Definition 2025
northing
northing
English
Noun
northing (plural northings)
- (cartography) The distance north of a standard reference latitude.
- (nautical) A distance traveled northward.