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erstwhile

American  
[urst-hwahyl, -wahyl] / ˈɜrstˌʰwaɪl, -ˌwaɪl /

adjective

  1. former; of times past.

    erstwhile friends.

    Synonyms:
    previous, bygone, past
    Antonyms:
    present, current

adverb

  1. Archaic. formerly; erst.

erstwhile British  
/ ˈɜːstˌwaɪl /

adjective

  1. former; one-time

    my erstwhile companions

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adverb

  1. archaic long ago; formerly

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of erstwhile

First recorded in 1560–70; erst + while

Explanation

If your dad used to play in a punk band, but is now a computer programmer, you could call him an erstwhile punk rocker. Erstwhile means "former." Erstwhile comes from Old English and is a formal way to say "former." You can go to your class reunion 20 years after you graduate high school and see your erstwhile friends. That means that they had been your friends, but you lost touch with them, so that they weren't friends of yours anymore. Erstwhile can also be used as an adverb, meaning “formerly or once” — “Erstwhile, I was a member of the high school debate team.”

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Erstwhile ace Walker Buehler also returned from a second Tommy John surgery in early May, and three-time National League Cy Young Award winner Clayton Kershaw is expected to return from shoulder surgery this summer.

From Los Angeles Times • May 20, 2024

Erstwhile comedian Volodymyr Zelensky is now lionized as an inspirational leader across much of the globe.

From Washington Post • Jan. 6, 2023

Erstwhile aces Chris Sale and David Price were shut down before the end of the year, and baseball boss Dave Dombrowski was fired.

From Seattle Times • Sep. 30, 2019

Erstwhile Johnson nemesis and slightly dubious Brexiteer Michael Gove is now head of the Cabinet Office, a position that for extremely British reasons is technically called “Chancellor of the Duchy of Lancaster.”

From Slate • Jul. 25, 2019

Erstwhile, where money had had power to tempt, he had seen that money had power to comfort, too—but not here! not here!

From A Pasteboard Crown A Story of the New York Stage by Morris, Clara

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