Lewis & Short

2. Tuscŭlum, i, n., a very ancient town of Latium, on a hill near the modern Frascati, Liv. 2, 15 sq.; 6, 33 sq.; Cic. Font. 18, 41; id. Div. 1, 43, 98; 2, 45, 94; Hor. Epod. 1, 29 al.
Hence,

  1. A. Tuscŭlā-nus, a, um, adj., of or belonging to Tusculum, Tusculan: ager, Varr. L. L. 7, § 318 Müll.: colles, Liv. 3, 7, 3: aqua, Cic. Balb. 20, 45: populus, Liv. 8, 37: sacra, Varr. L. L. 6, § 16 Müll. et saep.
    Substt.
      1. a. Tuscŭ-lānum, i, n., the name of several estates at Tusculum; so Cicero’s estate there, Cic. Att. 2, 1, 11; 7, 5, 3; id. Fam. 7, 23, 3.
        Hence, Tusculanae Disputationes, the title of a work written there by Cicero.
        An estate of Cœsar, Cic. de Or. 2, 3, 13.
        Of L. Crassus, Cic. de Or. 1, 7, 24; 1, 21, 98.
        Of M. Crassus, Cic. Att. 4, 16, 3.
        Of Lucullus, Cic. Ac. 2, 48, 148; id. Fin. 3, 2, 7 al.
        Hence, Tuscŭlānen-sis, e, adj., of or pertaining to Tusculum: dies, passed at the Tusculan estate, Cic. Fam. 9, 6, 4.
      2. b. Tuscŭlāni, ōrum, m., the inhabitants of Tusculum, Tusculans, Plin. 3, 5, 9, § 64; Varr. L. L. 6, 3, 55; Cic. Off. 1, 11, 35; id. Balb. 13, 31.
  2. B. Tuscŭlus, a, um, adj., of or belonging to Tusculum, Tusculan (poet. for Tusculanus): tellus, Tib. 1, 7, 57; Mart. 9, 61, 2: colles, id. 4, 64, 13: moenia, Sil. 7, 692: umbra, Stat. S. 4, 4, 16.
    Plur. subst.: Tuscŭli, ōrum, m., the inhabitants of Tusculum, the Tusculans, Mart. 7, 31, 11.