Lewis & Short

2. appărātus (adp-), ūs, m. [apparo].

  1. I. A preparing, providing, preparation, getting ready; abstr. (class.; but, except in Hor. C. 1, 38, 1, scarcely to be found in any poet): requiro omnem totius operis designationem atque adparatum, Cic. N. D. 1, 8, 20: totius belli instrumentum et adparatus, id. Ac. 2, 1, 3: sacrorum, id. Rep. 2, 14: operum ac munitionum, Liv. 21, 7: sacrificii, Suet. Ner. 56.
    More freq.,
  2. II. Meton., a preparation, provision; concr., equipment, apparatus (instruments, furniture, machines, etc.).
    1. A. In gen.: in reliquo Darei adparatu, movables, Plin. 13, 1, 1, § 3; so, argenteus, id. 22, 23, 47, § 99: apparatus (military engines) et munitiones, Nep. Eum. 5, 7; Caes. B. C. 3, 41 al.: arma promta ex regio apparatu, Liv. 5, 5: apparatus oppugnandarum urbium, id. 34, 33; so id. 25, 14; 26, 47.
      Also of men: auxiliorum apparatus, Liv. 9, 7 al.
    2. B. Esp., magnificent preparation, splendor, pomp, magnificence, state: magnifici adparatus vitaeque cultus cum elegantiā et copiā, Cic. Off. 1, 8, 25: omitto festum diem, argento, veste, omni apparatu ornatuque virendo, id. Vatin. 13; id. Or. 25, 83; id. Fam. 9, 19: regio adparatu accepti, etc., id. Rep. 6, 10; so Nep. Paus. 3, 2; so also of the pomp and parade attending public spectacles or other festive celebrations: ludorum venationumque adparatus, Cic. Off. 2, 16, 55; Liv. 27, 6; Suet. Caes. 10 (cf. apparo).