aptr-hvarf

n. a turning back, return, Sturl. ii. 16; illr aftrhvarfs, disinclined to face the enemy again, Fms. vii. 325.

β. relapse, Fms. ii. 47, where it is used of apostasy. Since the Reformation always used by theologians in a good sense, repentance, turning away from sin; iðran ok a. are freq. used together, iðran being repentance, the internal condition, aptrhvarf the movement away from sin, or the repentance put into act.