Antonianus
Could not find Antoniano in Logeion dictionaries.
Antoniano Proper-name adjective: neuter dative singular, Proper-name adjective: masculine ablative singular, Proper-name adjective: masculine dative singular, Proper-name adjective: neuter ablative singular of Antonianus
Antōnĭānus, v. Antonius.
Antōniānus, a, um, s. Antōnius.