LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Segulius

Segulius m sg (genitive Seguliī or Segulī)
Classical[sɛˈɡʊ.li.ʊs]Ecclesiastical[seˈɡuː.li.us]

Meaning

  1. masculinesingulara Roman nomen gentile, gens or "family name" famously held by
  2. masculinesingularSegulius Labeo, a Roman man mentioned by Cicero

Declension

declension
formsingularplural
nominativeSegulius—
genitiveSeguliī
Segulī		—
dativeSeguliō—
accusativeSegulium—
ablativeSeguliō—
vocativeSegulī—

In the Academy Smith's classical dictionaries

Biography & mythologySeguliusSegulius. an artist in gold (aurufex, sic), whose name is found in a Latin inscription (Gruter, p. dcxxxix. 1), in which his full name is D. Seyulius …

Quick answers

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