LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Volnius

Volnius m sg (genitive Volniī or Volnī)
Classical[ˈwɔɫ.ni.ʊs]Ecclesiastical[ˈvɔl.ni.us]

Meaning

  1. masculinesingulara Roman nomen gentile, gens or "family name" famously held by
  2. masculinesingularVolnius, a Roman tragedy writer

Declension

declension
formsingularplural
nominativeVolnius—
genitiveVolniī
Volnī		—
dativeVolniō—
accusativeVolnium—
ablativeVolniō—
vocativeVolnī—

In the Academy Smith's classical dictionaries

Biography & mythologyVolniusVolnius. not VOLUMNIUS, wrote some Tuscan tragedies, and is quoted by Varro for the statement that the names of the three ancient Roman tribes, Ramnes…

Quick answers

What does Volnius mean in Latin?
Volnius, a proper noun, means “a Roman nomen gentile, gens or "family name" famously held by”.
What is the genitive of Volnius?
The genitive singular is Volniī. Volnius is masculine, second declension.
How do you pronounce Volnius?
In classical Latin, [ˈwɔɫ.ni.ʊs]; in ecclesiastical (church) Latin, [ˈvɔl.ni.us].