Constantiacus
Could not find Constantiacas in Logeion dictionaries.
Constantiacas Proper-name adjective: feminine accusative plural of Constantiacus
Constantĭăcus, Constantĭānus, Constantĭensis, v. Constantius.
Cōnstantiacus, -tiānus, s. Cōnstantius.
Cōnstantĭăcus, a, um, Amm. 21, 12, 2, -tĭānus, a, um, Amm. 22, 3, 11 et -tĭēnsis, e, Rufius Fest. Brev. 27, de Constance [empereur romain].