Lewis & Short

vectīgālis, e, adj [id.].

  1. I. Of or belonging to imposts or taxes: pecunia, i. e. impost, tribute, Cic. Verr. 2, 1, 35, § 89, cf.: annuum tributum, Just. 13, 1, 9.
    1. B. Paying tribute, subject to imposts, tributary: civitas, Cic. Verr. 2, 3, 34, § 79: agri, id. ib. 2, 3, 43, § 103: hos Suevi … vectigales sibi fecerunt, Caes. B. G. 4, 3; 3, 8; cf.: (Hannibal) vectigalis stipendiariusque et servus populi Romani, Liv. 21, 41, 7.
  2. II. Of or belonging to the revenue, that brings in revenue or income: equos vectigales tradere, Cic. Phil. 2, 25, 62: ita ei lecti sui contumelia vectigalis est, App. Mag. p. 323, 11: libertas, Tert. Apol. 18: quadrigae, Ascon. ap. Cic. Or. in Tog. Caud. p. 94, 14 Bait.