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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 Liverpool defender Nick Tanner has regained the number one spot in the fantasy football world rankings, days after he was briefly overtaken by the world’s top chess player, Magnus Carlsen.

From The Guardian • Dec. 18, 2019

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 didst thou say that thou wouldst not let thy greatness sink so long as life lasteth.

From Young Folks Treasury, Volume 2 (of 12) by Various

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