LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Pāpius1

Pāpius m sg (genitive Pāpiī or Pāpī)
Classical[ˈpaː.pi.ʊs]Ecclesiastical[ˈpaː.pi.us]

Meaning

  1. a Roman nomen gentile, gens or "family name" famously held by
  2. Gaius Papius Mutilus, a Samnite general

Declension

declension
formsingularplural
nominativePāpius—
genitivePāpiī
Pāpī
—
dativePāpiō—
accusativePāpium—
ablativePāpiō—
vocativePāpī—

Pāpĭus, i, m.,
I. the name of a Roman gens.—
1. C. Papius, a tribune of the people, the originator of the lex Papia de peregrinis exterminandis, Cic. Off. 3, 11, 47.—
2. M. Papius Mutilus, a consul, who, together with his colleague, Poppaeus, passed, in the reign of Augustus, the lex Papia Poppaea, for the promotion of marriages, Tac. A. 2, 32; 3, 25; 28; suet. Claud. 23; id. Ner. 10; Aus. Epigr. 89.—
3. Papia, wife of Oppianicus, Cic. Clu. 9, 27.—Hence, Pāpĭus, a, adj., of or belonging to the gens Papia: Papia tribus, Inscr. Grut. 307, 7; 879, 6 et saep.

In the Academy Smith's classical dictionaries

adjectivefirst/second-declension adjective
Pāpius2
Pāpius (feminine Pāpia, neuter Pāpium)
Classical[ˈpaː.pi.ʊs]Ecclesiastical[ˈpaː.pi.us]

Meaning

  1. adjectiveof or pertaining to the gens Papia.

Declension

singular
formmasculinefeminineneuter
nominativePāpiusPāpiaPāpium
genitivePāpiīPāpiaePāpiī
dativePāpiōPāpiaePāpiō
accusativePāpiumPāpiamPāpium
ablativePāpiōPāpiāPāpiō
vocativePāpiePāpiaPāpium
plural
formmasculinefeminineneuter
nominativePāpiīPāpiaePāpia
genitivePāpiōrumPāpiārumPāpiōrum
dativePāpiīsPāpiīsPāpiīs
accusativePāpiōsPāpiāsPāpia
ablativePāpiīsPāpiīsPāpiīs
vocativePāpiīPāpiaePāpia

In the Academy Smith's classical dictionaries

Quick answers

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