LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Silicius

Silicius m sg (genitive Siliciī or Silicī)
Classical[sɪˈlɪ.ki.ʊs]Ecclesiastical[siˈliː.t͡ʃi.us]

Meaning

  1. masculinesingulara Roman nomen gentile, gens or "family name" famously held by
  2. masculinesingularPublius Silicius Coronas, a Roman senator

Declension

declension
formsingularplural
nominativeSilicius—
genitiveSiliciī
Silicī		—
dativeSiliciō—
accusativeSilicium—
ablativeSiliciō—
vocativeSilicī—

Origins

Possibly from silex (“flint”) + -ius.

Quick answers

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