rollback (n.)

• abatement
• agio
• allowance
• backsliding
• breakage
• concession
• curtailment
• cut
• cutback
• deduction
• depreciation
• discount
• drawback
• kickback
• lapse
• penalty
• percentage
• premium
• pullback
• reaction
• rebate
• recession
• recidivism
• reduction
• reentry
• reflux
• refund
• regress
• regression
• relapse
• retrenchment
• retroflexion
• retrogression
• return
• salvage
• setback
• setoff
• tare
• throwback
• write-off