a Roman gold coin, equal in value to 25 denarii.—According to Ainsworth, the aureus of the higher empire weighed near five pennyweights; and in the lower empire, little more than half that weight. We learn from Suetonius, that it was customary to give aurei to the victors in the chariot-races.

AUREUS mons (anc. geogr.), a mountain in the north-west of Corica, whose ridge runs out to the north-east and south-east, forming an elbow.—Another mountain of Moesia Superior, or Servia (Ptolemy), to the south of the Danube, with a cognominal town at its foot on the same river. The emperor Probus planted this mountain with vines (Eutropius).