undergird

verb

un·​der·​gird ˌən-dər-ˈgərd How to pronounce undergird (audio)
undergirded; undergirding; undergirds

transitive verb

1
archaic : to make secure underneath
took measures to undergird the shipActs 27:17 (Revised Standard Version)
2
: to form the basis or foundation of : strengthen, support
facts and statistics subtly undergird his commentarySusan Q. Stranahan

Did you know?

When undergird was a new word in the 16th century, it was ships that were undergirded—that is, made secure below—and the undergirding was done by passing a rope or chain underneath. That literal sense has long since fallen out of use, but in the 19th century undergird picked up the figurative “strengthen” or “support” meaning that we still use. Centuries before anything was undergirded, however, people and things could be girded—that is, encircled or bound with a flexible band, such as a belt. Girding today is more often about preparing oneself to fight or to do something difficult, as in “girding themselves for an ideological battle.” About as old as gird is the word’s close relation, girdle, which originally referred to an article of clothing that circles the body usually at the waist; the girdles of today address the same anatomical territory but with the squeezy aim of making the waist look thinner. Gird also gives us girder, a noun referring to a horizontal piece supporting a structure.

Examples of undergird in a Sentence

the theory of evolution undergirds virtually all of modern biology
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
An injunction directing how such processes may unfold would be contrary to the policy of insulating legislative activity from 'outside interference' that undergirds this court's immunity jurisprudence. Melissa Quinn, CBS News, 20 May 2025 But the problematic power dynamics that undergird this industry of monetized innocence have begun to draw scrutiny both in Japan and abroad. Patrick Brzeski, HollywoodReporter, 14 May 2025 Just weeks ago, the Trump administration ended billions of dollars in aid to Africa that undergirded many countries’ health care systems and disaster relief efforts. Patricia Cohen, New York Times, 5 Apr. 2025 That survey’s mental health components have also undergirded research on the threat being posed to the nation’s young people by smartphones and social media, which many conservatives have taken up as a cudgel against Big Tech. Or take education. Alec MacGillis, ProPublica, 18 Apr. 2025 See All Example Sentences for undergird

Word History

First Known Use

1526, in the meaning defined at sense 1

Time Traveler
The first known use of undergird was in 1526

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Cite this Entry

“Undergird.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undergird. Accessed 5 Jun. 2025.

Kids Definition

undergird

verb
un·​der·​gird ˌən-dər-ˈgərd How to pronounce undergird (audio)
: to make secure : brace up : strengthen
a life undergirded by religion
Last Updated: - Updated example sentences
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