LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Firmius

Firmius m sg (genitive Firmiī or Firmī)
Classical[ˈfɪr.mi.ʊs]Ecclesiastical[ˈfir.mi.us]

Meaning

  1. masculinesingulara Roman nomen gentile, gens or "family name" famously held by
  2. masculinesingularFirmius Cato, one of the accusers of Marcus Scribonius Libo

Declension

declension
formsingularplural
nominativeFirmius—
genitiveFirmiī
Firmī		—
dativeFirmiō—
accusativeFirmium—
ablativeFirmiō—
vocativeFirmī—

Firmĭus, ii, m.,
I. a Roman proper name, e. g. Firmius Catus, Tac. A. 2, 27; 4, 31.— Hence, Firmĭānus, a, um, adj., of Firmius, an unknown silver-worker of that name: Firmiana vasa, Plin. 33, 11, 49, § 139 (Jan. Furniana).

Origins

  1. Proto-Indo-European*dʰer-
  2. Proto-Indo-European*dʰermos
  3. Proto-Italic*θermos
  4. Proto-Italic*fermos
  5. LatinFirmius

Proto-Indo-European *-(i)yós Proto-Italic *-ijos Proto-Italic *-ios Old Latin -ios Latin -ius Latin Firmius From firmus (“stable, firm”) + -ius.

Quick answers

What does Firmius mean in Latin?
Firmius, a proper noun, means “a Roman nomen gentile, gens or "family name" famously held by”.
What is the genitive of Firmius?
The genitive singular is Firmiī. Firmius is masculine, second declension.
How do you pronounce Firmius?
In classical Latin, [ˈfɪr.mi.ʊs]; in ecclesiastical (church) Latin, [ˈfir.mi.us].
Where does Firmius come from?
Proto-Indo-European *dʰer- → Proto-Indo-European *dʰermos → Proto-Italic *θermos → Proto-Italic *fermos → Latin Firmius.