LATIN DICTIONARYLexicon Latīnum
proper noun · masculinethird declension

Osīris

Osīris m sg (genitive Osīris)
Classical[ɔˈsiː.rɪs]Ecclesiastical[oˈs̬iː.ris]

Meaning

  1. EgyptianOsiris (the Egyptian god of the dead and of the underworld)
  2. name of a warrior slain by Thymbrœus

Declension

declension
formsingularplural
nominativeOsīris—
genitiveOsīris—
dativeOsīrī—
accusativeOsīrim
Osīrin		—
ablativeOsīrī—
vocativeOsīris—

Ŏsīris, is and ĭdis, m., = Ὄσιρις.
I. An Egyptian deity, the husband of Isis, Tib. 1, 7, 27; 29; 43; Ov. M. 9, 692; Hor. Ep. 1, 17, 60; Juv. 8, 29; Macr. S. 1, 21.—
II. Name of a warrior slain by Thymbrœus, Verg. A. 12, 458.

Origins

Borrowed from Ancient Greek Ὄσῑρῐς (Ósīrĭs).

In the Academy Smith's classical dictionaries

Biography & mythologyOsirisOsiris (Ὄσιρις,) the great Egyptian divinity and husband of Isis. According to Hlerodotns they were the only divinities that were worshipped by all th…

Quick answers

What does Osīris mean in Latin?
Osīris, a proper noun, means “Osiris (the Egyptian god of the dead and of the underworld); name of a warrior slain by Thymbrœus”.
What is the genitive of Osīris?
The genitive singular is Osīris. Osīris is masculine, third declension.
How do you pronounce Osīris?
In classical Latin, [ɔˈsiː.rɪs]; in ecclesiastical (church) Latin, [oˈs̬iː.ris].