LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Dellius

Dellius m sg (genitive Delliī or Dellī)
Classical[ˈdɛl.li.ʊs]Ecclesiastical[ˈdɛl.li.us]

Meaning

  1. masculinesingulara Roman nomen gentile, gens or "family name" famously held by
  2. masculinesingularQuintus Dellius, a Roman commander

Declension

declension
formsingularplural
nominativeDellius—
genitiveDelliī
Dellī		—
dativeDelliō—
accusativeDellium—
ablativeDelliō—
vocativeDellī—

Origins

Maybe a variant of Dillius.

Quick answers

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