Lewis & Short

justĭfĭco, 1, v. a. [justificus].

  1. I. To act justly towards, do justice to one; with simple acc. of the pers. (post-class.): justificate viduam, Tert. adv. Marc. 19.
  2. II. To justify, make just, forgive, pardon, vindicate (post-class.): malos, Coripp. Laud. Justini jun. 2 fin.: impium, Aug. Enar. in Psa. 110, 3; Vulg. Rom. 8, 30: ut ex fide justificemur, id. Gal. 3, 24 et saep.
    Hence, justĭfĭcātus, a, um, P. a., justified (eccl. Lat.): baptismate, Prud. Apoth. 881; Tert. adv. Marc. 4, 36.
    Comp.: Publicanus Pharisaeo justificatior discessit, Tert. Or. 13.