(adjective) : Cassĭus, aold form Casseius; hence, Cassīus, and from this Cassĭus is formed; cf. Ritschl de Sepulcro Fur.
* The name of a Roman gens; esp. distinguished
* L. Cassius Longinus Ravilla, a very severe judge; from him the Lex tabellaria Cassia proceeded, A. U. C. 617, by which the judges were obliged to vote with little tablets, Cic. Leg. 3, 16, 35; id. Sest. 48, 103; id. Brut. 25, 97; 27, 106; and Ascon. Cic. Verr. 1, 1, 10, § 30.
* Hence, Cassĭānus, a, um, , of Cassius, Cic. Mil. 12, 32; id. Phil. 2, 14, 35.
* The consul L. Cassius, who, A.U.C. 647, was conquered and slain by the Helvetii, Caes. B. G. 1, 7 and 12.—Hence, bellum Cassianum, Caes. B. G. 1, 13.
* C. Cassius Longinus, one of the murderers of Coesar, Vell. 2, 46; 2, 56 sq.; Suet. Caes. 80 sq.; id. Aug. 10; Tac. A. 1, 2; 1, 10; 4, 34; id. H. 2, 6 al. To him were addressed Cic. Fam. 12, 1-10; from him to Cic.,ib. 12, 11-13.—Hence, Cassianae partes, his adherents, Vell. 2, 74.
* C. Cassius Longinus, a distinguished jurist under Claudius; his adherents were Cassiani and Cassiana schola, Dig. 1, 1, 2; Plin. Ep. 7, 24, 8; Tac. A. 12, 12.
* After a Cassius not now known was named the Cassia Via, a branch of the Via Flaminia, Cic. Phil. 12, 9, 22; cf. Paul. ex Fest. p. 48 Müll.

Personal name
Confirmed occurences in the Roman Empire:

• Q. Antonius Cassius Cassianus (Masc, senator), ref: PIR A 0819 | PIR ID1577
• C. Avidius Cassius Imp. Caesar C. Avidius Cassius Aug. (Masc, senator), ref: PIR A 1402 | PIR ID2773
• C. Avidius Cassius Imp. Caesar C. Avidius Cassius Aug. (Masc, senator), ref: PIR A 1402 | PIR ID2773
• L. Caesius ... L. Cassius Corneolus (Masc, eques), ref: PIR C 0188 | PIR ID3333
• Cassius (Masc, senator), ref: PIR C 0475 | PIR ID3688
• C. Cassius ... (Masc, senator), ref: PIR C 0476 | PIR ID3689
• L. Cassius (Masc, senator), ref: PIR C 0477 | PIR ID3690
• L. Cassius ... (Masc, senator), ref: PIR C 0478 | PIR ID3691
• Cassius (Masc, senator), ref: Barbieri 118 | PIR ID3692
• Cassius (Masc), ref: PIR C 0471 | PIR ID3693
• Cassius (Masc), ref: PIR C 0472 | PIR ID3694
• Cassius (Masc), ref: PIR C 0473 | PIR ID3695
• Cassius (Masc), ref: PIR C 0474 | PIR ID3696
• P. Cassius ... (Masc, eques), ref: AE 1912, 20 | PIR ID3697
• Cassius (Masc, senator), ref: VI 41104 | PIR ID3698
• Q. Cassius Agrianus Aelianus (Masc, senator), ref: PIR C 0480 | PIR ID3699
• M. Cassius Agrippa (Masc, eques), ref: PIR C 0482 | PIR ID3700
• .. Cassius Agrippa Agrippinus (Masc, senator), ref: PIR C 0481 | PIR ID3701
• M. Cassius Agrippa Sanctus Paullinus Augustanius Alpinus (Masc, senator), ref: AE 1967, 223 | PIR ID3702
• Cassius Agrippinus (Masc, senator), ref: PIR C 0483 | PIR ID3703
• Cassius Al... (Masc, eques), ref: ZPE 120 (1998) 257-258 n. 2 | PIR ID3704
• M. Cassius Apollinaris (Masc, senator), ref: PIR C 0484 | PIR ID3705
• M. Cassius Apronianus (Masc, senator), ref: PIR C 0485 | PIR ID3706
• P. Cassius Apronianus (Masc, eques), ref: I. Perge 202 | PIR ID3707
• Cassius Asclepiodotus (Masc), ref: PIR C 0486 | PIR ID3708
• M. Cassius Calpurnianus (Masc), ref: VIII 21779 | PIR ID3709
• C. Cassius Celer (Masc, senator), ref: PIR C 0487 | PIR ID3710
• L. Cassius Cerealis (Masc), ref: AE 1983, 193 | PIR ID3711
• Cassius Chaerea (Masc), ref: PIR C 0488 | PIR ID3712
• C. Cassius Chrestus (Masc), ref: SEG 28, 1032 | PIR ID3713
• Cassius Clemens (Masc, senator), ref: PIR C 0489 | PIR ID3714
• M. Cassius Cornasidius Sabinus (Masc, eques), ref: AE 1960, 257 | PIR ID3715
• P. Cassius Dexter (Masc, senator), ref: PIR C 0490 | PIR ID3716
• Cassius Dio Cocceianus L. Claudius Cassius Dio Cocceianus (Masc, senator), ref: PIR C 0492 | PIR ID3717
• Cassius Dio Cocceianus L. Claudius Cassius Dio Cocceianus (Masc, senator), ref: PIR C 0492 | PIR ID3717
• Cassius Dion (Masc, senator), ref: PIR C 0491 | PIR ID3718
• Cassius Festus (Masc), ref: PIR C 0493 | PIR ID3719
• Cassius Firminianus (Masc, eques), ref: AE 1990, 470 | PIR ID3720
• Q. Cassius Gratus (Masc, senator), ref: RE Suppl. 12 (1970) 138 s.v. Cassius 45a | PIR ID3721
• Cassius Hadrianus (Masc), ref: PIR C 0494 | PIR ID3722
• M. Cassius Hortensius Paulinus (Masc, senator), ref: PIR H 0211 | PIR ID3723
• C. Cassius Interamnanus Pisibanus Priscus (Masc, senator), ref: PIR C 0495 | PIR ID3724
• L. Cassius Iuvenalis (Masc, senator), ref: PIR C 0496 | PIR ID3725
• Cassius Ligurinus (Masc, eques), ref: PIR C 0497 | PIR ID3726
• Cassius Ligus (Masc), ref: PIR C 0498 | PIR ID3727
• C. Cassius Longinus (Masc, senator), ref: PIR C 0501 | PIR ID3728
• L. Cassius Longinus (Masc, senator), ref: PIR C 0502 | PIR ID3729
• L. Cassius Longinus (Masc, senator), ref: PIR C 0503 | PIR ID3730
• L. Cassius Longinus (Masc, senator), ref: PIR C 0504 | PIR ID3731
• P. Cassius Longinus (Masc, senator), ref: RE Suppl. 14 (1974) 87 s.v. Cassius 68a | PIR ID3732
• Cassius Longinus (Masc), ref: PIR C 0499 | PIR ID3733
• Cassius Longinus (Masc), ref: PIR C 0500 | PIR ID3734
• Cassius Longinus (Masc), ref: FHG 3, 688 | PIR ID3735
• Cassius Longus (Masc), ref: PIR C 0505 | PIR ID3736
• L. Cassius Manilianus (Masc, senator), ref: PIR C 0506 | PIR ID3737
• L. Cassius Marcellinus (Masc, senator), ref: PIR C 0507 | PIR ID3738
• Cassius Marianus (Masc, eques), ref: XII 671 | PIR ID3739
• Cassius Maximus (Masc, senator), ref: PIR C 0508 | PIR ID3740
• Cassius Maximus (Masc), ref: PIR C 0509 | PIR ID3741
• Cassius Montanus Cassius Marianus (Masc, eques), ref: PIR C 0510 | PIR ID3742
• Cassius Montanus Cassius Marianus (Masc, eques), ref: PIR C 0510 | PIR ID3742
• Cassius Papirius (Masc, senator), ref: PIR C 0511 | PIR ID3743
• Cassius Patavinus (Masc), ref: PIR C 0512 | PIR ID3744
• M. Cassius Paullinus (Masc, senator), ref: PIR C 0513 | PIR ID3745
• L. Cassius Paullus Augustanius Alpinus Bellicius Sollers (Masc, senator), ref: AE 1967, 223 | PIR ID3746
• L. Cassius Petraeus (Masc), ref: PIR C 0514 | PIR ID3747
• C. Cassius Philiscus (Masc), ref: PIR C 0515 | PIR ID3748
• Cassius Pius Marcellinus (Masc, senator), ref: PIR C 0516 | PIR ID3749
• M. Cassius Pollio (Masc), ref: PIR C 0517 | PIR ID3750
• L. Cassius Princeps (Masc), ref: PIR C 0518 | PIR ID3751
• C. Cassius Regallianus (Masc, senator), ref: RMD V 449 | PIR ID3752
• C. Cassius Salamallas (Masc, eques), ref: PIR C 0519 | PIR ID3753
• Cassius Salanus (Masc), ref: PIR C 0520 | PIR ID3754
• P. Cassius Secundus (Masc, senator), ref: PIR C 0521 | PIR ID3755
• Cassius Severus (Masc), ref: PIR C 0522 | PIR ID3756
• L. Cassius Severus (Masc, eques), ref: SEG 35, 829 | PIR ID3757
• C. Cassius Statilius Severus Hadrianus (Masc, senator), ref: VI 37067 | PIR ID3758
• L. Cassius Tertullus (Masc, senator), ref: ZPE 120 (1998) 272-273 n. 1 | PIR ID3759
• Claudius Cassius Caesius Agrippinus (Masc, senator), ref: PIR C 0828 | PIR ID4231
• Iulius Cassius Paulinus (Masc, senator), ref: PIR I 0249 | PIR ID7421
• T. Iulius Maximus Manlianus Brocchus Servilianus A. Quadronius Verus L. Servilius Vatia Cassius Camars (Masc, senator), ref: PIR I 0426 | PIR ID7627
• Ti. Licinius Cassius Cassianus (Masc, senator), ref: PIR L 0181 | PIR ID8311
• ...lius Cassius Taurinus (Masc, senator), ref: PIR C 0523 | PIR ID8406
• Philotas C. Cassius Philotas (Masc), ref: PIR P 0385 | PIR ID10396
• D. Pius Cassius (Masc, senator), ref: PIR C 0479 (= P1 0329) | PIR ID10452
• Statilius Cassius Taurinus (Masc, senator), ref: PIR S1 0593 | PIR ID12630
• Cassius Taurinus (Masc, eques), ref: AE 2010, 1751 | PIR ID14900
• Cassius Taurus (Masc, eques), ref: H. Cuvigny La route de Myos Hormos 2, 2003, 304 | PIR ID14901
• M. Ulpius Cassius (senator), ref: I. Ankara (French, Mitchell) 61 | PIR ID14973
• A. Cassius Arrianus (Masc, senator), ref: AE 2010, 1856 | PIR ID15033

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