LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Rōmilius

Rōmilius m sg (genitive Rōmiliī or Rōmilī)
Classical[roːˈmɪ.li.ʊs]Ecclesiastical[roˈmiː.li.us]

Meaning

  1. a Roman nomen gentile, gens or "family name" famously held by
  2. Titus Romilius Rocus Vaticanus, a Roman consul

Declension

declension
formsingularplural
nominativeRōmilius—
genitiveRōmiliī
Rōmilī		—
dativeRōmiliō—
accusativeRōmilium—
ablativeRōmiliō—
vocativeRōmilī—

Origins

Possibly from the same root of Rōma; thus, cognate with Rōmulus. Compare Iūlius and, mostly, Aemilius.

Quick answers

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