Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

Clūsĭum, ii, n.,

  1. I. one of the oldest and most important towns of Etruria, the residence of Porsenna, previously called Camars or Camers, now Chiusi, Liv. 5, 33, 4 sq.; 10, 25, 11; Varr. ap. Plin. 36, 13, 19, § 91; Verg. A. 10, 167 al.; Müll. Etrusk. 1, p. 102; 1, p. 233 sq.; 2, p. 342.
    Hence,
  2. II. Clūsīnus, a, um, adj., pertaining to Clusium, of Clusium: vulgus, Sil. 8, 480: fontes (cold baths), Hor. Ep. 1, 15, 9: far (of special whiteness and excellence), Col. 2, 6, 3: siligo, Plin. 18, 9, 20, § 87: pultes, Mart. 13, 8.
    In plur.: Clūsīni, ōrum, m., the inhabitants of Clusium, Liv. 5, 33, 1: novi, veteres, Plin. 3, 5, 8, § 52.

Clūsĭus, ii, m. [cludo = claudo], a cognomen of Janus, whose temple was closed in peace (opp. Patulcius, when open during war), Ov. F. 1, 130; cf. Clusivius, Macr. S. 1, 9.