dĭădūmĕnus

a, um, adj.
I. wearing a diadem: juvenis, Plin. 34, 8, 19, § 55: statua, Sen. Ep. 65, 5.—
II. Antoninus Diadumenus, a Roman emperor, son and successor of Macrinus; cf. Lampr. Anton. Diadum. 4.
Lewis & Short
A Latin Dictionary, 1879
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