rollback
n. countablen. a return to an earlier state or a lower price. You use this when a company lowers prices or when a computer system goes back to an older version because of a problem.
n. the process of restoring a system, database, or policy to a previous state. Often refers to the reversal of a software update or the reduction of prices to a former level.
The store announced a rollback on milk prices.
After the new software caused several crashes, the IT department initiated a system rollback to the previous stable version.
Environmental groups expressed concern that the proposed legislative rollback would undo decades of progress in protecting local water quality and wildlife habitats.
The noun is a deverbal from roll back. The verb is a back-formation from the noun despite being redundant to roll back.
Commonly used in computing to describe data recovery and in retail to describe price reductions.