LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Volumnius

Volumnius m sg (genitive Volumniī or Volumnī)
Classical[wɔˈɫʊm.ni.ʊs]Ecclesiastical[voˈlum.ni.us]

Meaning

  1. masculinesingularThe name of a Roman gens, famously held by
  2. masculinesingularLucius Volumnius Flamma Violens, a Roman consul

Declension

declension
formsingularplural
nominativeVolumnius—
genitiveVolumniī
Volumnī		—
dativeVolumniō—
accusativeVolumnium—
ablativeVolumniō—
vocativeVolumnī—

Volumnĭus, i, m.; Volumnĭa, ae, f.,
I. the name of a Roman gens.
1. P. Volumnius, a Roman consul, Liv. 3, 10.—
2. L. Volumnius, a consul, who conquered the Samnites, Liv. 9, 42; 10, 18 sq.—
II. Volumnia.
1. The wife of Coriolanus, Liv. 2, 40. —
2. A freed-woman, mistress of M. Antonius, Cic. Phil. 2, 24; otherwise called Cytheris, v. Cytheris.—Hence, Volumnĭā-nus, a, um, adj., of or named from Volumnius: exercitus, Liv. 19, 12.

Origins

Proto-Indo-European *-(i)yós Proto-Italic *-ijos Proto-Italic *-ios Old Latin -ios Latin -ius Latin Volumnius From Volumnus (“a Roman god”) + -ius.

In the Academy Smith's classical dictionaries

Biography & mythologyVolumniusVolumnius. 5. P. Volumnius, described by Plutarch as a philosopher, accompanied M. Brutus in his campaign against the triumvirs, and wrote an account …

Quick answers

What does Volumnius mean in Latin?
Volumnius, a proper noun, means “The name of a Roman gens, famously held by”.
What is the genitive of Volumnius?
The genitive singular is Volumniī. Volumnius is masculine, second declension.
How do you pronounce Volumnius?
In classical Latin, [wɔˈɫʊm.ni.ʊs]; in ecclesiastical (church) Latin, [voˈlum.ni.us].