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rollback

[rohl-bak]
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noun
  1. an act or instance of rolling back.
  2. a return to a lower level of prices, wages, etc., as by government order.
  3. a pulling back or withdrawal: a rollback of attack forces.
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Origin of rollback

First recorded in 1935–40; noun use of verb phrase roll back
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Word Origin and History for rollback

n.

also roll-back, "action of rolling backward," 1937; "reduction," 1942, American English, from verbal phrase, from roll (v.) + back (adv.).

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Online Etymology Dictionary, © 2010 Douglas Harper