undergo
un·der·go/ˌʌndɚˈɡoʊ/verb
undergo is spelled U-N-D-E-R-G-O: 7 letters and 3 syllables (un·der·go). It appears 6.5 times per million words in written English, the 9,463rd most frequent word form (wordfreq, 2021 data). As a verb, undergo means “To experience; to pass through a phase” (English Wiktionary, September 2026).
How many letters and syllables are in undergo?
| Letters | 7: U-N-D-E-R-G-O |
|---|---|
| Syllables | 3: un·der·go |
| In writing | 6.5 times per million words; the 9,463rd most frequent word form |
| Wrong spellings searched | none measured in search |
| Rhymes with | |
| Same letters |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); rhymes and same-letter words are computed by PlainSpell from its own word list.
How common is undergo?
Undergo appears 6.5 times per million words in written English, the 9,463rd most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce undergo?
- US /ˌʌndɚˈɡoʊ/
- UK /ˌʌndəˈɡəʊ/
Undergo has 3 syllables, split un·der·go in writing.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-undergo.wav, Wikimedia Commons (author and licence on each file's page).
What rhymes with undergo?
The 12 most written words on PlainSpell end in the same sounds as undergo from its last stressed vowel (/oʊ/):
Spelled with the same letters in another order: guerdon.
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of undergo
- undergoes present, singular, he/she/it
- undergoing participle, present
- underwent past
- undergone participle, past
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does undergo mean?
The meanings the English Wiktionary records, quoted as written there (source below).
verb
- 1
To experience; to pass through a phase.
The project is undergoing great changes.
- 2
To suffer or endure; bear with.
The victim underwent great trauma.
- 3
obsoleteTo go or move under or beneath.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Undergo in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| French | subir |
| German | durchmachen |
| Portuguese | passar por, experienciar , sofrer |
| Spanish | someterse a, ser sometido a , soportar, padecer |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does undergo come from?
From Middle English undergon, from Old English undergān (“to undergo, undermine, ruin”), equivalent to under- + go. Cognate with Dutch ondergaan (“to undergo, perish, sink”), German untergehen (“to perish, sink, undergo”), Swedish undergå (“to undergo, go through”).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).