LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Cōpōnius

Cōpōnius m sg (genitive Cōpōniī or Cōpōnī)
Classical[koːˈpoː.ni.ʊs]Ecclesiastical[koˈpɔː.ni.us]

Meaning

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

Declension

declension
formsingularplural
nominativeCōpōnius—
genitiveCōpōniī
Cōpōnī		—
dativeCōpōniō—
accusativeCōpōnium—
ablativeCōpōniō—
vocativeCōpōnī—

Cōpōnĭus, a,
I. the name of a plebeian family at Rome, e. g. the two brothers, T. and C. Coponii, Cic. Cael. 10, 24; id. Balb. 23, 53.—Hence, Cōpōnĭānus, a, um, adj., of or pertaining to Coponius, Cic. Att. 12, 31, 2.

In the Academy Smith's classical dictionaries

Biography & mythologyCoponiusCoponius. 6. C. Coponius, one of the praetors on the breaking out of the civil war in B. C. 49. He espoused the side of Pompey, followed him into Gree…

Quick answers

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