vĕtĕrātōrĭus, a, um, adj. [veterator, II. A.],
crafty. cunning , sly (Ciceronian): nihil ab isto tectum, nihil veteratorium exspectaveritis: omnia aperta, omnia perspicua reperientur, Cic. Verr. 2, 1, 54, § 141; so, ratio dicendi, id. Brut. 75, 261.—* Adv.: vĕtĕrātōrĭē , craftily , cunningly , slyly : dicere (with acute), Cic. Or. 28, 99.
veterātōrius adj. veterator, crafty, cunning, sly : ab isto nihil veteratorium exspecta...
An Elementary Latin Dictionary