LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Cassius

Cassius m sg (genitive Cassiī or Cassī)
Classical[ˈkas.si.ʊs]Ecclesiastical[ˈkas.si.us]

Meaning

  1. masculinesingulara Roman nomen gentile, gens or "family name" held by many Roman politicians, historians and other notable individuals. See Cassia gens.

Declension

declension
formsingularplural
nominativeCassius—
genitiveCassiī
Cassī
—
dativeCassiō—
accusativeCassium—
ablativeCassiō—
vocativeCassī—

Cassĭus, a old form Casseius; hence, Cassīus, and from this Cassĭus is formed; cf. Ritschl de Sepulcro Fur.,
I. the name of a Roman gens; esp. distinguished,
I. 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.—
B. Hence, Cassĭānus, a, um, adj., of Cassius, Cic. Mil. 12, 32; id. Phil. 2, 14, 35.—
II. 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.—
III. C. Cassius Longinus, one of the murderers of Cœsar, 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.—
IV. 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.—
V. 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.

Origins

Nominative singular deriving from the gens Cassia, a Roman family of antiquity. From cassus (“empty, hollow, lacking; useless, pointless”) + -ius.

Descendants
  • EnglishCassius
  • Ancient GreekΚάσσιος

In the Academy Smith's classical dictionaries

Quick answers

What does Cassius mean in Latin?
Cassius, a proper noun, means “a Roman nomen gentile, gens or "family name" held by many Roman politicians, historians and other notable individuals. See Cassia gens.”.
What is the genitive of Cassius?
The genitive singular is Cassiī. Cassius is masculine, second declension.
How do you pronounce Cassius?
In classical Latin, [ˈkas.si.ʊs]; in ecclesiastical (church) Latin, [ˈkas.si.us].