Lewis & Short

Dāci, ōrum, m., Δακοί,

  1. I. the Dacians, a famous warlike people, akin to the Thracians. They occupied what is now Upper Hungary, Transylvania, Moldavia, Wallachia, Bessarabia. Subdued by Trajan, they received Roman civilization, and thence retain in part the name Rumanians, Plin. 4, 12, 25; Caes. B. G. 6, 25; Tac. G. 1; id. H. 1, 79; 3, 46; Suet. Caes. 44; id. Aug. 8; Flor. 4, 12, 3; Hor. S. 2, 6, 53 et saep. In sing., Dācus, i, m., a Dacian (usually collect.), Verg. G. 2, 497; cf. Voss. ad loc.; Hor. Od. 1, 35, 9; 2, 20, 18; Tac. H. 1, 2 al.
  2. II. Hence,
    1. A. Dācĭa, ae, f., Δακία, the province Dacia, Tac. Agr. 41; Flor. 3, 4, 6; Oros. 1, 2; Jornand. Regn. Succ. p. 59, 52 al.: DACIA. APVLENSIS. (of the colony Apulum or Alba Julia, near Carlsburg), Inscr. Orell. no. 3888: (DECIO) RESTITVTORI DACIARVM, ib. no. 991. A part of it bordering on the Danube was Dacia Aureliani, Eutrop. 9, 15; and Dacia Ripensis, Jornand. Regn. Succ. p. 59, 51.
    2. * B. Dācus, a, um, adj., Dacian: proelia, Stat. S. 4, 2, 66 (written Dacius, Albin. Cons. ad Liv. 387).
    3. C. Dācĭcus, a, um, adj., Dacian: arma, Claud. VI. Cons. Honor. 335: rura, Sid. Carm. 1, 272. As subst., Da-cicus, i, m. (sc. nummus), a piece of gold coined under Domitian, the conqueror of the Dacians (Suet. Dom. 6), Juv. 6, 205.
    4. D. Dāciscus, a, um, adj., Dacian, imperium, Lact. de Mort. Pers. 27, 8.