LATIN DICTIONARYLexicon Latīnum
noun · masculinesecond declension

sardius

sardius m (genitive sardiī or sardī)
Classical[ˈsar.di.ʊs]Ecclesiastical[ˈsar.di.us]

Meaning

  1. masculinesardian, carnelian

Declension

declension
formsingularplural
nominativesardiussardiī
genitivesardiī
sardī		sardiōrum
dativesardiōsardiīs
accusativesardiumsardiōs
ablativesardiōsardiīs
vocativesardiesardiī

sardĭus, a, um, adj. cf. 1. sarda, II.,
I. sardian, carnelian (late Lat.): lapis, Vulg. Exod. 28, 17.—Hence, subst.: sardĭus, ii, m., the carnelian, a precious stone, Vulg. Exod. 39, 10; id. Apoc. 21, 20; Tert. adv. Marc. 2, 10; called lapis sardinus, Vulg. Apoc. 4, 3; cf. Hier. in Isa. 15, 54, v. 11 sq.

Origins

Possibly from Ancient Greek σάρδιον (sárdion).

Quick answers

What does sardius mean in Latin?
sardius, a noun, means “sardian, carnelian”.
What is the genitive of sardius?
The genitive singular is sardiī. sardius is masculine, second declension.
How do you pronounce sardius?
In classical Latin, [ˈsar.di.ʊs]; in ecclesiastical (church) Latin, [ˈsar.di.us].