WordNet (r) 3.0 (2006):

rollback
    n 1: the act of forcing the enemy to withdraw [syn: rollback,
         push back]
    2: reducing prices back to some earlier level

Moby Thesaurus II by Grady Ward, 1.0:

62 Moby Thesaurus words for "rollback":
   abatement, agio, allowance, backset, backsliding, backward motion,
   backward step, bank discount, breakage, cash discount,
   chain discount, charge-off, concession, curtailment, cut, cutback,
   deduction, depreciation, discount, drawback, kickback, lapse,
   penalty, penalty clause, percentage, premium, price reduction,
   price-cut, pullback, reaction, rebate, rebatement, recession,
   recidivation, recidivism, reduction, reentry, refluence, reflux,
   refund, regress, regression, relapse, retrenchment, retroaction,
   retrocession, retroflexion, retrogradation, retrogression,
   retrusion, return, salvage, setback, setoff, sternway, tare,
   throwback, time discount, trade discount, tret, underselling,
   write-off



The Free On-line Dictionary of Computing (30 December 2018):

rollback

    Reverting data in a database to an earlier state,
   usually in response to an error or aborted operation.

   In a transaction based database system, transactions are
   considered atomic.  If an error occurs while performing a
   transaction, the database is automatically rolled back
   to the state at the previous commit.

   Rollback may also be performed by an explicit rollback
   transaction.

   (2000-01-15)