the act of backtracking
To retrace one's steps.
To exercise a racehorse around the racetrack in the opposite direction to that in which races are run.
To taxi down an active runway in the opposite direction to that being used for takeoff.
To repeat or review work already done.
An act of alluding, returning, or reverting (to a subject previously mentioned, etc.); also, an act of evoking, or longing or pining for (a past era or event).
An act of hounds retracing a course in order to pick up the lost scent of prey.