authenticus

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

authentĭcus, a, um, adj., = αὐθεντικός,

that comes from the author , authentic , original , genuine (in the jurists and Church fathers; syn.: verus, germanus): testamentum, the original will , Dig. 29, 3, 12: tabulae, the same, ib. 10, 2, 4.—Also subst.: authentĭcum , i, n., the original writing , the original , Dig. 22, 4, 2.