[ uhn-der-goh ]
/ ˌʌn dərˈgoʊ /

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

Examples from the Web for undergoes

British Dictionary definitions for undergoes


/ (ˌʌndəˈɡəʊ) /

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 undergoes



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