The Collaborative International Dictionary of English v.0.48:

Retrace \Re*trace"\, v. t. [Pref. re- + trace: cf. F. retracer.
   Cf. Retract.]
   1. To trace back, as a line.
      [1913 Webster]

            Then if the line of Turnus you retrace,
            He springs from Inachus of Argive race. --Driden.
      [1913 Webster]

   2. To go back, in or over (a previous course); to go over
      again in a reverse direction; as, to retrace one's steps;
      to retrace one's proceedings.
      [1913 Webster]

   3. To trace over again, or renew the outline of, as a
      drawing; to draw again.
      [1913 Webster]

WordNet (r) 3.0 (2006):

retrace
    v 1: to go back over again; "we retraced the route we took last
         summer"; "trace your path" [syn: trace, retrace]
    2: reassemble mentally; "reconstruct the events of 20 years ago"
       [syn: reconstruct, construct, retrace]

Moby Thesaurus II by Grady Ward, 1.0:

37 Moby Thesaurus words for "retrace":
   bring back, bring to mind, call back, call to mind, call up,
   conjure up, evoke, go back, go back over, hark back, look back,
   mind, re-examine, reappraise, rebehold, recall, recall to mind,
   recapture, recheck, recollect, reconsider, reevoke, reflect,
   reinquire, remember, rethink, retrospect, revaluate, review,
   review in retrospect, revise, revive, see in retrospect, summon up,
   think back, think of, use hindsight