Lewis Short
(adjective) : subdĭtīvus, a, um, id.
* Substituted, supposititious, spurious, counterfeit (rare but class.): de illo subditivo Sosia mirum nimis est,Plaut. Am. 2, 2, 198; 1, 2, 35: archipirata,Cic. Verr. 2, 5, 27, § 69: fratrem ut subditivum arguere,Suet. Ner. 7. —Subst.: Subdĭtīvus, i, m., the title of a comedy of Coecilius, Gell. 15, 9, 1 (Com. Rel. p. 39 sq. Rib.).
Charlton T. Lewis, Charles Short, A Latin Dictionary