Tibereius
Could not find Tibereia in Logeion dictionaries.
Tibereia Proper-name adjective: neuter nominative plural, Proper-name adjective: neuter vocative plural, Proper-name adjective: feminine nominative singular, Proper-name adjective: feminine ablative singular, Proper-name adjective: feminine vocative singular, Proper-name adjective: neuter accusative plural of Tibereius
Tĭbĕrēĭus, a, um, v. Tiberius, II. 3.
Tiberēius, a, um, s. Tiberius.
Tĭbĕreĭus, a, um et Tĭbĕrĕus, a, um, de Tibère : Stat. S. 3, 3, 66 ; Tibereum marmor Plin. 36, 55, marbre trouvé en Égypte sous le règne de Tibère.