aegis

noun

ae·​gis ˈē-jəs How to pronounce aegis (audio)
also
ˈā- How to pronounce aegis (audio)
variants or less commonly egis
1
: a shield or breastplate emblematic of majesty that was associated with Zeus and Athena
2
a
: protection
under the aegis of the Constitution
b
: controlling or conditioning (see condition entry 2 sense 5a) influence
passed new laws under the aegis of national security
3
a
: auspices, sponsorship
under the aegis of the museum
b
: control or guidance especially by an individual, group, or system
under the aegis of the government

Did you know?

Aegis Has Greek and Latin Roots

English borrowed aegis from Latin, but the word ultimately comes from the Greek noun aigís, meaning “goatskin.” In ancient Greek mythology, an aegis was something that offered physical protection. It has been depicted in various ways, including as a magical protective cloak made from the skin of the goat that suckled Zeus as an infant, and as a shield fashioned by Hephaestus that bore the severed head of the Gorgon Medusa. The word first entered English in the 15th century as a noun referring to the shield or breastplate associated with Zeus or Athena. It later took on a more general sense of “protection” and, by the late-19th century, it had acquired the extended senses of “auspices” and “sponsorship.”

Examples of aegis in a Sentence

having no claim to the land under the aegis of the law, the cattle baron decided to claim it by force a medical study that was questioned by many because it was done under the aegis of a major pharmaceutical company
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.
Fortunately, the exhibitions presented under the aegis of PST ART, through their rigorous investigation into centuries of cross-pollination between art and science, reveal all that is elided by the ahistorical theme. Michaëla De Lacaze Mohrmann, Artforum, 1 Jan. 2025 Full review » Fall Chicory Salad at Crane Club The sprawling, stately West Chelsea space that used to be Al Coro, and before that Del Posto, was recently reborn, yet again—this time, under the night-clubby aegis of the Tao Group, who’ve turned it into a steak house. Helen Rosner, The New Yorker, 22 Dec. 2024 Watch on Deadline The roster has taken shape under the aegis of Helen Estabrook, Global Head of Film & Television, and Sarah Amos, VP, Development and Production (Non-Fiction TV, Documentaries). Dade Hayes, Deadline, 25 Oct. 2024 Built between 1163 and 1345, the Catholic cathedral had been desecrated once before, in 1789 during the French Revolution, and restored in the 19th century under the aegis of Eugène Viollet-le-Duc. Sarah Belmont, ARTnews.com, 9 Dec. 2024 See all Example Sentences for aegis 

Word History

Etymology

borrowed from Latin, borrowed from Greek aigís "goatskin, mantle of Zeus," derivative of aig-, aíx "goat"; akin to Armenian aic "goat" (perhaps going back to Indo-European *h2eiǵ-ih2-), and perhaps to Avestan izaēna "of leather"

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of aegis was in the 15th century

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Cite this Entry

“Aegis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aegis. Accessed 18 Jan. 2025.

Kids Definition

aegis

noun
ae·​gis ˈē-jəs How to pronounce aegis (audio)
1
: protection sense 1a, defense
under the aegis of the law
2
: patronage sense 1, sponsorship
under the aegis of the museum

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