LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Latīnius

Latīnius m sg (genitive Latīniī or Latīnī)
Classical[ɫaˈtiː.ni.ʊs]Ecclesiastical[laˈtiː.ni.us]

Meaning

  1. a Roman nomen gentile, gens or "family name" famously held by
  2. Latinius Pandus, a Roman praetor

Declension

declension
formsingularplural
nominativeLatīnius—
genitiveLatīniī
Latīnī		—
dativeLatīniō—
accusativeLatīnium—
ablativeLatīniō—
vocativeLatīnī—

Lătīnĭus, ĭi, m.,
I. a Roman proper name: Latinius Latiaris, Tac. A. 4, 68: Latinius Pandus, id. ib. 2, 66.

Origins

From latīnus (“Latin”) + -ius.

Quick answers

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