Lewis Short
(adj.adj.) : Serdica, ae, f.
* A city of Moesia, Cassiod. Hist. Eccl. 4, 21.—Hence
* Ser-dicensis, e, adj., Serdican, of Serdica: concilium,Cassiod. Hist. Eccl. 4, 24.
* Serdicēnus, a, um, adj., Serdican, of Serdica, Cassiod. Hist. Eccl. 4, 33; 4, 38.
Charlton T. Lewis, Charles Short, A Latin Dictionary