LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Sȳrus1

Sȳrus m sg (genitive Sȳrī)

Meaning

  1. Ephrem the Syrian

Declension

declension
formsingularplural
nominativeSȳrus—
genitiveSȳrī—
dativeSȳrō—
accusativeSȳrum—
ablativeSȳrō—
vocativeSȳre—

Sўrus, i, m.,
I. the name of a slave, Ter. Ad. 2, 2, 41; id. Heaut. 2, 3, 69.—Of a dog of Actæon, Hyg. Fab. 187.

Origins

Shorthand for Ephraem Sȳrus, borrowed from Ancient Greek Ἐφραίμ ὁ Σῦρος (Ephraím ho Sûros). Note the difference in prosody from Attic Σῠ́ρος (Sŭ́ros, “Syrian”) and its coincidence with the island's name above - this may reflect the breakdown of Attic prosody, or a regional pronunciation.

In the Academy Smith's classical dictionaries

Biography & mythologySyrusSyrus. a slave brought to Rome some years before the downfal of the republic, and designated, according to the usual practice, from the country of his…
adjectivefirst/second-declension adjective
syrus2
syrus (feminine syra, neuter syrum)
Classical[ˈsy.rʊs]Ecclesiastical[ˈsiː.rus]

Meaning

  1. adjectiveSyrian

Declension

singular
formmasculinefeminineneuter
nominativesyrussyrasyrum
genitivesyrīsyraesyrī
dativesyrōsyraesyrō
accusativesyrumsyramsyrum
ablativesyrōsyrāsyrō
vocativesyresyrasyrum
plural
formmasculinefeminineneuter
nominativesyrīsyraesyra
genitivesyrōrumsyrārumsyrōrum
dativesyrīssyrīssyrīs
accusativesyrōssyrāssyra
ablativesyrīssyrīssyrīs
vocativesyrīsyraesyra

Syrus, a, um, v. Syria, B.

Origins

From Syria.

proper noun · masculinesecond declension
Syrus3
Syrus m sg (genitive Syrī)

Meaning

  1. masculinesingularInitially a slave name, also used as a cognomen.

Declension

declension
formsingularplural
nominativeSyrus—
genitiveSyrī—
dativeSyrō—
accusativeSyrum—
ablativeSyrō—
vocativeSyre—

syrus, i, m.,
I. a broom, besom, Varr. ap. Non. 46, 10.

Origins

From syrus (“Syrian”).

In the Academy Smith's classical dictionaries

Biography & mythologySyrusSyrus. a slave brought to Rome some years before the downfal of the republic, and designated, according to the usual practice, from the country of his…

Quick answers

What does Sȳrus mean in Latin?
Sȳrus, a proper noun, means “Ephrem the Syrian”.
What is the genitive of Sȳrus?
The genitive singular is Sȳrī. Sȳrus is masculine, second declension.