What does Eugenius mean in Latin?

Eugenius, a proper noun, means “A Roman cognomen and later a male given name from Ancient Greek, equivalent to English Eugene”.

What is the genitive of Eugenius?

The genitive singular is Eugeniī. Eugenius is masculine, second declension.

In classical Latin, [ɛu̯ˈɡɛ.ni.ʊs]; in ecclesiastical (church) Latin, [eu̯ˈd͡ʒɛː.ni.us].

proper noun · masculinesecond declension

Eugenius m (genitive Eugeniī)

Classical[ɛu̯ˈɡɛ.ni.ʊs]Ecclesiastical[eu̯ˈd͡ʒɛː.ni.us]

masculineA Roman cognomen and later a male given name from Ancient Greek, equivalent to English Eugene

Borrowed from Ancient Greek Εὐγένιος (Eugénios, from εὐγενής (eugenḗs, “well-born”) + -ιος (-ios, adjective suffix)).

Descendants

proper noun · masculinesecond declension

Eugenius²

Eugenius m (genitive Eugeniī)

Classical[ɛu̯ˈɡɛ.ni.ʊs]Ecclesiastical[eu̯ˈd͡ʒɛː.ni.us]

Medieval Latinmasculinea male given name from Old Welsh, equivalent to English Owen or Welsh Owain
Fugit tunc Analafus filius Sihctrici Hiberniam, et Godefridus frater ejus Scotiam; subsecuti sunt e vestigio regales, missi ad Constantinum regem Scottorum et Eugenium regem Cumbrorum, transfugam eum denuntiatione belli repetentes.Anlaf son of Sitric thereupon fled to Ireland, and his brother Gofraid to Scotland; royal messengers sent to Constantine the king of the Scots and Owain king of the Cumbrians followed in his footsteps, demanding the return of the fugitive under threat of war.c. 1125, William of Malmesbury, Gesta Regum Anglorum; republished as William Stubbs, editor, Willelmi Malmesbiriensis Monachi De Gestis Regum Anglorum Libri Quinque […], volume 1, 1887, page 147:

Borrowed from Old Welsh Eugein, from Proto-Brythonic *Awɨɣėn.

What does Eugenius mean in Latin?: Eugenius, a proper noun, means “A Roman cognomen and later a male given name from Ancient Greek, equivalent to English Eugene”.
What is the genitive of Eugenius?: The genitive singular is Eugeniī. Eugenius is masculine, second declension.
How do you pronounce Eugenius?: In classical Latin, [ɛu̯ˈɡɛ.ni.ʊs]; in ecclesiastical (church) Latin, [eu̯ˈd͡ʒɛː.ni.us].