verb (used with object), un·der·went, un·der·gone, un·der·go·ing.

to be subjected to; experience; pass through: to undergo surgery.
to endure; sustain; suffer: to undergo sustained deprivation.

Origin of undergo

before 1000; Middle English undergon, Old English undergān. See under-, go1
Related formsun·der·go·er, noun

Synonyms for undergo

1. See experience. 2. bear, tolerate.

Antonyms for undergo

1. avoid.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for undergo

Contemporary Examples of undergo

Historical Examples of undergo

  • Her dear friend is left in trouble, and undergo sickness too.

  • But before they can be used to advantage, they must undergo a process of retroussage.

    The Book of Khalid

    Ameen Rihani

  • And what greater good or evil can any destiny ever make us undergo?



  • For there are two classes of souls who undergo punishment—the curable and the incurable.



  • Why must I always have to undergo humiliation after humiliation?

    Fair Harbor

    Joseph Crosby Lincoln

British Dictionary definitions for undergo


verb -goes, -going, -went or -gone

(tr) to experience, endure, or sustainto undergo a dramatic change of feelings
Derived Formsundergoer, noun

Word Origin for undergo

Old English: earlier meanings were more closely linked with the senses of under and go
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

Word Origin and History for undergo

Old English undergan "undermine," from under + gan (see go). Cf. Middle Dutch ondergaen, Old High German untarkun, German untergehen, Danish undergaa. Sense of "submit to, endure" is attested from c.1300. Meaning "to pass through" (an alteration, etc.) is attested from 1630s. Related: Undergone; underwent.

Online Etymology Dictionary, © 2010 Douglas Harper