Lewis Short
(adjective) : trĕdĕcim (tresd-, Front. Aquaed. 33), tres-decem
* Thirteen: tredecim captis navibus,Liv. 36, 45, 3: centum tredecim senatores,Tac. H. 5, 19 fin.: equus emptus talentis tredecim,Gell. 5, 2, 2 (for which we have decem et tres, Cic. Rosc. Am. 7, 20: decem tres,Liv. 37, 30, 8: decem tria milia,id. 29, 2, 17; v. decem).
Charlton T. Lewis, Charles Short, A Latin Dictionary