diadem

[ dahy-uh-dem ]
/ ˈdaɪ əˌdɛm /

noun

a crown.
a cloth headband, sometimes adorned with jewels, formerly worn by monarchs in Asia Minor and other parts of the East.
royal dignity or authority.

verb (used with object)

to adorn with or as if with a diadem; crown.

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Origin of diadem

1250–1300; Middle English diademe (<Anglo-French ) <Latin diadēma<Greek diádēma fillet, band, equivalent to diadē- (verbid stem of diadeîn to bind round + -ma noun suffix
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for diadem

British Dictionary definitions for diadem

diadem
/ (ˈdaɪəˌdɛm) /

noun

a royal crown, esp a light jewelled circlet
royal dignity or power

verb

(tr) to adorn or crown with or as with a diadem

Word Origin for diadem

C13: from Latin diadēma, from Greek: fillet, royal headdress, from diadein to bind around, from dia- + dein to bind
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