A second name was given at baptism, or assumed with some religious motive. In the first three centuries considerations of prudence would prevent an advertisement of Christianity through a name of peculiar meaning, and even baptismal names were not biblical or of pious meaning and association. Later the early indifference of Christians as to the character of their names ceased, and after the fourth century heathen names were discouraged. cf. D.C.A. ii. 1368. “Dionysius,” though of pagan origin, is biblical; but “martyrs often encountered death bearing the names of these very divinities to whom they refuse to offer sacrifice.” So we have Apollinarius, Hermias, Demetrius, Origenes (sprung from Horus), Arius, Athenodorus, Aphrodisius, and many more.
Editorial footnote · The Letters, Chapter uncertain; original source section: Letter 10, editorial note cite_note-3 · Original source