Lewis & Short

vĕtĕrātor, ōris, m. [veteratus], one who has grown old, become gray, is practised, skilled in any thing.

  1. I. In gen.: in causis privatis satis veterator, Cic. Brut. 48, 178: in litteris, Gell. 3, 1, 5.
  2. II. In partic.
    1. A. In a bad sense, a crafty fellow, an old fox, sly-boots: acutus, versutus, veterator, Cic. Fin. 2, 16, 53; id. Rep. 3, 16, 26: quid hic vult veterator sibi? Ter. And. 2, 6, 26; id. Heaut. 5, 1, 16; Cic. Off. 3, 13, 57; 3, 32, 113; Gannius ap. Fest. p. 369.
    2. B. An old slave (opp. novitius), Dig. 21, 1, 65; 21, 1, 37.