Lewis Short
Constantīnus | Constantīnĭānus, a, um (noun M) : C. Flavius Vaferius Claudius Constantinus
* Constantine, a well-known Roman emperor, born A. D. 274, died A. D. 323, Eutr. 10, 2 sqq.; Lact. Mort. Pers. 18 sqq.; Amm. 21, 10, 8.—Hence, , , adj., of or pertaining to Constantine: genus,Amm. 27, 5, 1: lavacrum,id. 27, 3, 8.
Charlton T. Lewis, Charles Short, A Latin Dictionary