backdate

American  

[bak-deyt] / ˈbækˌdeɪt /

verb (used with object)

backdated, backdating

1. to date earlier than the actual date; predate; antedate.

   Backdate the letter so he'll think I wrote it last week.

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backdate British  

/ ˌbækˈdeɪt /

verb

1. (tr) to make effective from an earlier date

   the pay rise was backdated to August

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Etymology

Origin of backdate

An Americanism dating back to 1945–50; back ² + date ¹

Example Sentences

Hildreth said his client wrote a reimbursement check right away but that it was lost, necessitating a second, backdated check.

From Los Angeles Times

Her sentence will be backdated to 1 June, and she'll be eligible for parole after serving two years of her sentence.

From BBC

On Monday, investors began to analyze backdated federal data for broader snapshots of business conditions.

From The Wall Street Journal

The new tariff exemptions are backdated to take effect on November 13, according to the order published by the White House.

From Barron's

Eve's child benefit has now been reinstated with missing payments backdated.

From BBC