Lewis & Short

dŭumvĭrālis, e, adj. [duumviri], of or belonging to a duumvir, duumviral.

  1. I. Adj.: POTESTATE, Inscr. Fabr. p. 29, 129.
    More freq.,
  2. II. Subst.: duumviralis, is, m., one who has been a auumvir, Dig. 50, 3, 1; Inscr. Orell. 3727; 3816.