triumvir or IIIvir virī, gen plur. ōrum or ūm, m tres+vir, one of three associates in office, a member of a board of three, one of three joint commissioners: Gracchum triumvirum coloniis deducundis necaverat, i. e. one of three commissioners to found a colony, S.: agrarius, L.: triumvir rei p., one of three dictators, to reconstitute the state, N.

—Plur: triumviros agro dando creat, to distribute land, L.: capitales, superintendents of public prisons and of the police, L.: mensarii, commissioners of a public bank, L.: nocturni, fire-wardens, L.: senatus triumviros binos creari iussit, two recruiting boards, each of three members, L.: triumviri sacris conquirendis donisque persignandis, to solicit and register votive offerings, etc., L.: triumviri reficiendis aedibus, to rebuild the temples, L.