LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Arpīneius

Arpīneius m sg (genitive Arpīneiī or Arpīneī)
Classical[ar.piːˈnɛj.jʊs]Ecclesiastical[ar.piˈnɛː.jus]

Meaning

  1. a Roman nomen gentile, gens or "family name", famously held by
  2. Gaius Arpineius, a Roman knight

Declension

declension
formsingularplural
nominativeArpīneius—
genitiveArpīneiī
Arpīneī		—
dativeArpīneiō—
accusativeArpīneium—
ablativeArpīneiō—
vocativeArpīneī—

Quick answers

What does Arpīneius mean in Latin?
Arpīneius, a proper noun, means “a Roman nomen gentile, gens or "family name", famously held by”.
What is the genitive of Arpīneius?
The genitive singular is Arpīneiī. Arpīneius is masculine, second declension.
How do you pronounce Arpīneius?
In classical Latin, [ar.piːˈnɛj.jʊs]; in ecclesiastical (church) Latin, [ar.piˈnɛː.jus].