Lewis & Short

Ătīlĭus, a, um, adj.

  1. I. A Roman gentile name, e. g. M. Atilius Regulus, Atilius Rufus, Atilius Verus, etc.
  2. II. Derivv.
    1. A. Atilia lex de dediticiis, introduced by the tribune of the people L. Atilius, A. U. C. 544, Liv. 26, 33 and 34.
    2. B. Ătīlĭānus, a, um, adj., of or belonging to Atilius, Atilian: praedia, Cic. Att. 5, 1: virtus, that of Atilius Regulus, Val. Max. 4, 4, ext. 6.