Livianus
Could not find Livianae in Logeion dictionaries.
Livianae Proper-name adjective: feminine genitive singular, Proper-name adjective: feminine vocative plural, Proper-name adjective: feminine nominative plural, Proper-name adjective: feminine dative singular of Livianus
Līvĭānus, a, um, v. Livius, B.
Līviānus, a, um, s. Līviusa. E.
Līvĭānus, a, um, v. Livius et Livia.