Lewis Short
(adjective) : dĭācŏnĭcus, a, um, diaconus
* Belonging to a deaconship: loca, Cod. Th. 16, 5, 30.—Subst.: dĭācŏnĭcum, i, n., a place for storing the vessets of the altar, Cod. Theod. 16, 5, 10.
Charlton T. Lewis, Charles Short, A Latin Dictionary