Cephalio
Could not find Cephalioni in Logeion dictionaries.
Cephalioni Proper-name noun: masculine dative singular of Cephalio
Cĕphălio, ōnis, m., prob.
- a slave of Atticus, Cic. Att. 9, 25 init. al.
Cĕphălĭō, ōnis, m. , esclave dʼAtticus : Cic. Att. 7, 25.