diadem

di·a·dem  (d-dm, -dm)

n.

1. A crown worn as a sign of royalty.

2. Royal power or dignity.

tr.v. di·a·demed, di·a·dem·ing, di·a·dems

To adorn with or as if with a diadem.

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[Middle English diademe, from Old French, from Latin diadma, from Greek, band, from diadein, to bind around : dia-, dia- + dein, d-, to bind.]

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diadem

Noun

Old-fashioned a small jewelled crown or headband, usually worn by royalty: a gold diadem [Greek: royal headdress]

Thesaurus

Noun

1.

diadem - an ornamental jeweled headdress signifying sovereignty crown coronet - a small crown; usually indicates a high rank but below that of sovereign crown jewels - regalia (jewelry and other paraphernalia) worn by a sovereign on state occasions jeweled headdress, jewelled headdress - a headdress adorned with jewels