LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Caelius

Caelius m sg (genitive Caeliī or Caelī)
Classical[ˈkae̯.li.ʊs]Ecclesiastical[ˈt͡ʃɛː.li.us]

Meaning

  1. masculinesingularLucius Coelius Antipater, a Roman jurist and historian
  2. masculinesingularMarcus Caelius Rufus, a Roman politician and orator

Declension

declension
formsingularplural
nominativeCaelius—
genitiveCaeliī
Caelī
—
dativeCaeliō—
accusativeCaelium—
ablativeCaeliō—
vocativeCaelī—

Caelĭus (Coel-), i, m.
I. A Roman gentile name.
A. The orator M. Caelius Rufus, for whom Cicero made an oration, and whose letters to Cicero are contained in the 8th book of the Epp. ad Famil.; Cic. Brut. 79, 273; Caes. B. C. 3, 20 sqq.; Vell. 2, 68, 1; Sen. Ira, 3, 8, 4; Quint. 10, 1, 115; v. Teuffel, Röm. Litt. § 206, 5 sqq.—Hence, Caelĭānus, a, um, adj., Cœlian: orationes, Tac. Or. 21.—
B. L. Caelius Antipater, a distinguished historian and jurist in the time of the Gracchi, and teacher of Crassus, Cic. Brut. 26, 102; id. de Or. 2, 12, 53; id. Leg. 1, 2, 6.—Hence, Caelĭāna, ōrum, n., the writings of Cœlius, Cic. Att. 13, 8; v. Teuffel. Röm. Litt. § 142.—
C. C. Caelius Caldus, an orator, contemporary with Crassus, Cic. de Or. 1, 25, 117; id. Planc. 21, 52; id. Leg. 3, 16, 36.—
D. Caelius Aurelianus, a physician of the post - classic period, v. Teuffel, Röm. Litt. § 456.—
II. Caelius Mons, the Cœlian Hill at Rome, south of Palatinus, and east of Aventinus, named after the Tuscan Caeles Vibenna (pure Etrusc. Kaile Fipne), now the Lateran Mount, Varr L. L. 5, § 46 Müll.; Cic. Rep. 2, 18, 33; id. Off. 3, 16, 66; Tac. A. 4, 65.—Called Caelius Major, Mart. 12, 18, 16; cf. Caeliolus.—The soldiers of this Caeles are called Caelĭāni, Varr. L. L. 5, § 46 Müll.; cf.: CAELIANVS EXERCITVS, Inscr. Grut. 502, 1, 20.

Origins

Probably derived from caelum (“heaven”)

In the Academy Smith's classical dictionaries

Quick answers

What does Caelius mean in Latin?
Caelius, a proper noun, means “Lucius Coelius Antipater, a Roman jurist and historian; Marcus Caelius Rufus, a Roman politician and orator”.
What is the genitive of Caelius?
The genitive singular is Caeliī. Caelius is masculine, second declension.
How do you pronounce Caelius?
In classical Latin, [ˈkae̯.li.ʊs]; in ecclesiastical (church) Latin, [ˈt͡ʃɛː.li.us].