The Collaborative International Dictionary
Altarwise
Altarwise \Al"tar*wise`\, adv.
In the proper position of an altar, that is, at the east of a
church with its ends towards the north and south.
--Shipley.
Wiktionary
altarwise
a. Placed in the manner of an altar, against the eastern wall of the chancel with the longer side parallel to that wall.