The northern end of something; specifically the north side of the altar in a church.
The position taken by a priest consecrating the elements of Holy Communion became a matter of controversy in the late 19th cent. following the prosecution of John Purchas (1823–72) in the Court of Arches in 1869 for his adoption of the north-end position. High Church celebrants preferred to stand in front of the altar, facing east, with their backs to the congregation..
Origin
Old English; earliest use found in The Blickling Homilies. From the uninflected (originally adverb) stem of north + end. Compare Middle Dutch nortende (Dutch noordeinde), Middle Low German nōrtende.