LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Caesennius

Caesennius m sg (genitive Caesenniī or Caesennī)
Classical[kae̯ˈsɛn.ni.ʊs]Ecclesiastical[t͡ʃeˈs̬ɛn.ni.us]

Meaning

  1. masculinesingulara Roman nomen gentile, gens or "family name" famously held by
  2. masculinesingularLucius Caesennius Paetus, a Roman senator

Declension

declension
formsingularplural
nominativeCaesennius—
genitiveCaesenniī
Caesennī		—
dativeCaesenniō—
accusativeCaesennium—
ablativeCaesenniō—
vocativeCaesennī—

Caesennĭus, a,
I. a Roman gens; esp.,
I. Caesennius Lento, an adherent of Cœsar, Cic. Phil. 12, 9, 23.—
II. Caesennius Paetus, in Nero's time, Tac. A. 15, 6 sqq.

In the Academy Smith's classical dictionaries

Biography & mythologyCaesenniusCaesennius. the name of a noble Etruscan family at Tarquinii, two members of which are mentioned by Cicero, namely, P. Caesennius and Caesennia, first…

Quick answers

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