LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Dēcidius

Dēcidius m sg (genitive Dēcidiī or Dēcidī)
Classical[deːˈkɪ.di.ʊs]Ecclesiastical[deˈt͡ʃiː.di.us]

Meaning

  1. a Roman nomen gentile, gens or "family name" famously held by
  2. Lucius Decidius Saxa, a Roman general

Declension

declension
formsingularplural
nominativeDēcidius—
genitiveDēcidiī
Dēcidī
—
dativeDēcidiō—
accusativeDēcidium—
ablativeDēcidiō—
vocativeDēcidī—

Dē^cĭdĭus, ii, m.,
I. a Roman proper name, esp. L. Decidius Saxa, a military officer who served under Caesar, Caes. B. C. 1, 66; Cic. Phil. 8, 3, 9 al.

Quick answers

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