undergo

[uhn-der-goh]
verb (used with object), underwent, undergone, undergoing.
1.
to be subjected to; experience; pass through: to undergo surgery.
2.
to endure; sustain; suffer: to undergo sustained deprivation.

Origin:
before 1000; Middle English undergon, Old English undergān. See under-, go1

undergoer, noun


1. See experience. 2. bear, tolerate.


1. avoid.
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World English Dictionary
undergo (ˌʌndəˈɡəʊ)
 
vb , -goes, -going, -went, -gone
(tr) to experience, endure, or sustain: to undergo a dramatic change of feelings
 
[Old English: earlier meanings were more closely linked with the senses of under and go]
 
'undergoer
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

undergo
O.E. undergan "undermine," from under + gan (see go). Cf. M.Du. ondergaen, O.H.G. untarkun, Ger. untergehen, Dan. undergaa. Sense of "submit to, endure" is attested from c.1300. Meaning "to pass through" (an alteration, etc.) is attested from 1634.
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
Take our quiz featuring sites that were never started, never finished, or are
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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.
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