Domna is from the Latin domina (lady, mistress), or possibly the Aramaic root dmm (black). **Julia Domna (160-217 CE)** was the Syrian-born empress of Rome — wife of Septimius Severus, mother of Caracalla and Geta. A renowned patroness of philosophy and the arts in the Severan dynasty.
She supported Philostratus's biography of Apollonius of Tyana.
Domna reduces to eight — the number of Severan empress.