LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Rubrius

Rubrius m sg (genitive Rubriī or Rubrī)
Classical[ˈrʊ.bri.ʊs]Ecclesiastical[ˈruː.bri.us]

Meaning

  1. masculinesingulara Roman nomen gentile, gens or "family name" famously held by
  2. masculinesingularPublius Rubrius Barbarus, a Roman governor of Egypt

Declension

declension
formsingularplural
nominativeRubrius—
genitiveRubriī
Rubrī		—
dativeRubriō—
accusativeRubrium—
ablativeRubriō—
vocativeRubrī—

Rŭ_brĭus, i, m.; Rŭ_brĭa, ae, f.,
I. the name of a Roman gens; masc. Rubrius, Cic. Verr. 2, 1, 25, § 64; id. Phil. 2, 16, 40; id. Brut. 45, 168; Caes. B. C. 1, 23.—Fem. Rubria, Cic. Fam. 9, 21, 3.—Adj.: Lex Rubria (or lex Galliae Cisalpinae), of the year B. C. 43; v. Becker, Antiq. 3, 1, p. 51, and the authors there cited.—Hence,
II. Rŭ_brĭ-ānus, a, um, adj., of or belonging to a Rubrius, Rubrian: senatusconsultum, Dig. 40, 5, 26, § 9; 40, 5, 28 pr.

Origins

From ruber (“red”) + -ius.

In the Academy Smith's classical dictionaries

Biography & mythologyRubriusRubrius. a physician at Rome, who lived probably about the beginning or middle of the first century after Christ, and is mentioned by Pliny (Plin. Nat…

Quick answers

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