Lewis Short
Phĭlădelphus (noun M) : Φιλάδελφος (loving one's brother or sister)
* A Grecian and Roman surname.
* Ptolemaeus Philadelphus, a king of Egypt, Plin. 36, 7, 14, § 67; Gell. 6, 17, 3.
* Annius Philadelphus, Cic. Phil. 13, 12, 26.
* Philadelphus, a slave of Atticus, Cic. Att. 1, 11, 2: L. CALPVRNIVS L. L. PHILADELPHVS,Inscr. Maff. Mus. Veron. 274, 9.
Charlton T. Lewis, Charles Short, A Latin Dictionary