LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Sīrius

Sīrius m sg (genitive Sīriī or Sīrī)

Meaning

  1. Sirius

Declension

declension
formsingularplural
nominativeSīrius—
genitiveSīriī
Sīrī
—
dativeSīriō—
accusativeSīrium—
ablativeSīriō—
vocativeSīrī—

Sīrĭus, ii, m., = σείριος,
I. the dog-star, Sirius, Hyg. Astr. 3, 34; 2, 35; Verg. G. 4, 425; id. A. 3, 141; Tib. 1, 7, 21; Luc. 10, 211 al.—Adj.: ardor, of Sirius, Verg. A. 10, 273; Col. poët. 10, 289: vapor, Prud. Cath. 12, 22.

Origins

From Ancient Greek Σείριος (Seírios, “Seirios”), possibly from σείριος (seírios, “scorching, destructive”).

Elsewhere
  • CatalanSírius
  • FrenchSirius
  • GermanSirius
  • ItalianSirio
  • PortugueseSírio
  • RomanianSirius
  • SpanishSirio
  • AfrikaansSirius
  • Arabicاَلشِّعْرَى
  • Arabicالشِّعْرَى الْيَمَانِيَّة
Serbo-Croatian
  • CyrillicСиријус
  • RomanSirius

In English words that came into English from Sīrius

  • SiriusSīrius

Quick answers

What does Sīrius mean in Latin?
Sīrius, a proper noun, means “Sirius”.
What is the genitive of Sīrius?
The genitive singular is Sīriī. Sīrius is masculine, second declension.