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[uhn-der-goh] /ˌʌn dərˈgoʊ/
verb (used with object), underwent, undergone, undergoing.
to be subjected to; experience; pass through:
to undergo surgery.
to endure; sustain; suffer:
to undergo sustained deprivation.
before 1000; Middle English undergon, Old English undergān. See under-, go1
Related forms
undergoer, noun
1. See experience. 2. bear, tolerate.
1. avoid. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for undergoing
  • Take our quiz featuring sites that were never started, never finished, or are still undergoing construction.
  • Currently, however, the region is undergoing a drought.
  • In those days life was still confined mostly to the water, and it was undergoing a crisis.
  • Today, it is undergoing urban renewal and gentrification.
  • As the rains increasingly failed to come, the region began undergoing desertification.
  • Currently undergoing repairs, so part of the bridge may not be accessible.
  • The satellite has been undergoing calibration and check-out since it was launched last month.
  • Thin rings are a sign that the trees are undergoing stress, running short of water in the heat.
  • The dog's owner ran over hid the dog, so my husband is currently undergoing rabies shots.
  • The world and the world of higher education are undergoing enormous change.
British Dictionary definitions for undergoing


verb -goes, -going, -went, -gone
(transitive) to experience, endure, or sustain: to undergo a dramatic change of feelings
Derived Forms
undergoer, noun
Word Origin
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
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Word Origin and History for undergoing



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
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