AUTHENTICS

from The Collaborative International Dictionary of English v.0.48

Authentics \Au*then"tics\, n. (Ciwil Law)
   A collection of the Novels or New Constitutions of Justinian,
   by an anonymous author; -- so called on account of its
   authenticity. --Bouvier.
   [1913 Webster]

from Bouvier's Law Dictionary, Revised 6th Ed (1856)

AUTHENTICS, civ. law. This is the name given to a collection of the Novels
of Justinian, made by an anonymous author. It is called authentic on account
of its authority.
     2. There is also another collection which bears the name of authentics.
It is composed of extracts made from the Novels, by a lawyer named Irnier,
and which he inserted in the code at such places as they refer; these
extracts have the reputation of not being correct. Merlin, Repertoire, mot
Authentique.