LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Monnius

Monnius m sg (genitive Monniī or Monnī)
Classical[ˈmɔn.ni.ʊs]Ecclesiastical[ˈmɔn.ni.us]

Meaning

  1. masculinesingulara Roman nomen gentile, gens or "family name"

Declension

declension
formsingularplural
nominativeMonnius—
genitiveMonniī
Monnī		—
dativeMonniō—
accusativeMonnium—
ablativeMonniō—
vocativeMonnī—

Origins

According to Chase, from Oscan.

Quick answers

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