backdate
verb
back·date ˈbak-ˌdāt 
backdated; backdating; backdates
transitive verb
: to put a date earlier than the actual one on
backdate a memo
also : to make retroactive
backdate pension rights
Example Sentences
an increase in salary backdated to the beginning of the year
Recent Examples on the Web If the lives of two clams overlap, scientists can align their series of wider and narrower rings and so backdate their birth as well as death dates. 
Steven N. Austad, The Atlantic, 12 Aug. 2022 They are being sued for publishing and amplifying the claims of a postal worker in Erie, Pa., who implicated his boss in a plot to backdate mail-in ballots and help elect President Biden. New York Times, 13 Mar. 2022 Because the samples could not be accurately tested after three days, workers would backdate them so they would still be processed by the lab, Washington authorities said. Washington Post, 2 Feb. 2022 For those who had to wait to file a new claim, unemployment workers will be able to backdate any new initial claims. Matthew Glowicki, The Courier-Journal, 13 Apr. 2021 Hopkins claimed in the affidavit that post office workers were directed to pick up late ballots and backdate them, which was first reported by the investigative group Project Veritas. Anthony Leonardi, Washington Examiner, 11 Nov. 2020 Last week, the group's leader, James O'Keefe, shared a video by Pennsylvania postal worker Richard Hopkins claiming that employees in his mail facility were ordered to backdate ballots mailed after Election Day. Joseph Simonson, Washington Examiner, 11 Nov. 2020 Meanwhile, Republican National Committee Chairwoman Ronna McDaniel raised another series of claims during a news conference Friday in Bloomfield Hills, Mich., alleging that election workers in Detroit were told to backdate certain ballots. Anchorage Daily News, 9 Nov. 2020 The other was an allegation from a postal worker in Pennsylvania that a postmaster had instructed workers to backdate ballots mailed after Election Day. Michelle L. Price, Star Tribune, 12 Nov. 2020 See More
Steven N. Austad, The Atlantic, 12 Aug. 2022 They are being sued for publishing and amplifying the claims of a postal worker in Erie, Pa., who implicated his boss in a plot to backdate mail-in ballots and help elect President Biden. New York Times, 13 Mar. 2022 Because the samples could not be accurately tested after three days, workers would backdate them so they would still be processed by the lab, Washington authorities said. Washington Post, 2 Feb. 2022 For those who had to wait to file a new claim, unemployment workers will be able to backdate any new initial claims. Matthew Glowicki, The Courier-Journal, 13 Apr. 2021 Hopkins claimed in the affidavit that post office workers were directed to pick up late ballots and backdate them, which was first reported by the investigative group Project Veritas. Anthony Leonardi, Washington Examiner, 11 Nov. 2020 Last week, the group's leader, James O'Keefe, shared a video by Pennsylvania postal worker Richard Hopkins claiming that employees in his mail facility were ordered to backdate ballots mailed after Election Day. Joseph Simonson, Washington Examiner, 11 Nov. 2020 Meanwhile, Republican National Committee Chairwoman Ronna McDaniel raised another series of claims during a news conference Friday in Bloomfield Hills, Mich., alleging that election workers in Detroit were told to backdate certain ballots. Anchorage Daily News, 9 Nov. 2020 The other was an allegation from a postal worker in Pennsylvania that a postmaster had instructed workers to backdate ballots mailed after Election Day. Michelle L. Price, Star Tribune, 12 Nov. 2020 See More Word History
First Known Use
1822, in the meaning defined above