di·​a·​dem | \ ˈdī-ə-ˌdem How to pronounce diadem (audio) , -dəm \

Definition of diadem

1a : crown sense 2 specifically : a royal headband
b : crown sense 6a(1) diadems of power
2 : something that adorns like a crown

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Synonyms for diadem


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Examples of diadem in a Sentence

Miss America's diadem was auctioned off for charity.
Recent Examples on the Web Rauwaert, whose widespread generosity toward artists was reported by van Mander, once gave Cornelis a present of a diadem of pearls. New York Times, "The Lusty Creativity of Cornelis Cornelisz von Haarlem," 13 Jan. 2021 One photograph of Shepherd as a young woman shows her in the guise of a Celtic princess, strong jawed, a jewelled diadem crowning her long braids. Annalena Mcafee, WSJ, "Five Best: Memoirs of the Scottish Highlands," 18 Dec. 2020 Who needed a ball-worthy diadem that sat in a velvet box for much of the year, or an unwieldy cocktail ring? Nancy Hass, New York Times, "A Necklace That Highlights the Beauty in Versatility," 3 Dec. 2020 In the image, the queen is wearing the George IV diamond diadem and taking a moment in the Irish State Coach before heading to the Palace of Westminster in 1971. Bianca Betancourt, Harper's BAZAAR, "See a Rare Look at Queen Elizabeth II's Public and Private Life in the New Book, Her Majesty," 13 Nov. 2020 Most royal watchers instantly recognized the glittering diadem as Queen Mary’s Lover’s Knot Tiara, often shortened to the Lover’s Knot. Vogue, "Everything You Need to Know About Kate Middleton’s Favorite Tiara," 12 Dec. 2019 Meanwhile, the diadem, which was made for King George IV in 1820, features an openwork silver frame and 1,333 diamonds, according to the Royal Collection Trust. Chelsey Sanchez, Harper's BAZAAR, "Why Didn't Queen Elizabeth II Wear the Imperial State Crown for the Queen's Speech?," 14 Oct. 2019 The Duke had seven jewels commissioned for his niece from London jeweler C.S. Hancock—a bandeau, bracelet, coronet, diadem, necklace, stomacher, and comb. Stellene Volandes, Town & Country, "A Rare Tiara Designed for a Romanov Coronation Goes on Display," 8 July 2019 After Queen Alexandra's death, the diadem was bequeathed to Queen Mary, who then passed it on to Queen Elizabeth—who one day, will also pass it down. Chloe Foussianes, Town & Country, "Watch Queen Victoria's Daughter's Stunning Royal Tiara Be Transformed into a Necklace," 22 May 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'diadem.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of diadem

13th century, in the meaning defined at sense 1a

History and Etymology for diadem

Middle English diademe "monarch's crown, crownlike headdress," borrowed from Anglo-French, borrowed from Latin diadēma "ornamental headband, crown," borrowed from Greek diadēmat-, diádēma "headband, band wrapped around the headdress by Persian monarchs," from diadē-, variant stem of diadéō, diadeîn "to bind on either side, bandage" (from dia- dia- + déō, deîn "to bind, tie") + -mat-, -ma, resultative noun suffix; Greek déō, deîn probably going back to a zero-grade form (*dh1-i̯é-?) of the Indo-European verbal base *deh1- "tie, bind," whence also Sanskrit ā́-dhyati "(s/he) binds," Hittite tiya "bind!"; from a full grade *deh1- Greek édēsa "(I) bound," Sanskrit dāman-, dā́ma "cord, fetter"

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Time Traveler for diadem

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The first known use of diadem was in the 13th century

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Last Updated

12 Feb 2021

Cite this Entry

“Diadem.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diadem. Accessed 27 Feb. 2021.

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English Language Learners Definition of diadem

literary : a crown that is worn especially by a king or queen as a symbol of royalty

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