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di·a·dem

(dīə-dĕm′, -dəm)

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.

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

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diadem

1853 silver, pearl, and diamond diadem by Alexandre-Gabriel Lemonnier (1808-1884), owned by Empress Eugénie of France

Indo-European & Semitic Roots Appendices

Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

Indo-European Roots

Semitic Roots

The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.

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