LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Tadius

Tadius m sg (genitive Tadiī or Tadī)
Classical[ˈta.di.ʊs]Ecclesiastical[ˈtaː.di.us]

Meaning

  1. masculinesingulara Roman nomen gentile, gens or "family name"

Declension

declension
formsingularplural
nominativeTadius—
genitiveTadiī
Tadī		—
dativeTadiō—
accusativeTadium—
ablativeTadiō—
vocativeTadī—

Tadius, ii, m.,
I. a painter of the Age of Augustus, Plin. 35, 10, 37, § 116.

In the Academy Smith's classical dictionaries

Biography & mythologyTadiusTadius. 1. Appears to have held some property, which was said to belong to a girl who was in legitima tatela. Atticus thought that Tadius had a title …

Quick answers

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