LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Arctūrus

Arctūrus m (genitive Arctūrī)
Classical[arkˈtuː.rʊs]Ecclesiastical[arkˈtuː.rus]

Meaning

  1. the star Arcturus
  2. the constellation Boötes

Declension

declension
formsingularplural
nominativeArctūrusArctūrī
genitiveArctūrīArctūrōrum
dativeArctūrōArctūrīs
accusativeArctūrumArctūrōs
ablativeArctūrōArctūrīs
vocativeArctūreArctūrī

arctūrus, i, m., = ἀρκτοῦρος.
I. As a star.
A. The brightest star in Bootes,, whose rising and setting was supposed to portend tempestuous weather (Plaut. Rud. prol. 71): stella micans radiis, Arcturus, Cic. Arat. 99; id. N. D. 2, 42, 110 (as a transl. of Arat. 95); cf. Hyg. Fab. 130; id. Astr. 2, 4; Verg. A. 1, 744; Vulg. Job, 9, 6; 37, 9; ib. Amos, 5, 8; introduced in Plaut. Rud. as Prologus.—Transf.
B. The whole constellation (syn.: Bootes, Arctophylax), Verg. G. 1, 204 Voss.—
C. The rising of Arcturus, Verg. G. 1, 68.—
II. A plant, v. arction.

Origins

  1. Proto-Indo-European*h₂ŕ̥tḱos
  2. Proto-Hellenic*árktos
  3. Ancient Greek ᾰ̓́ρκτος(ắrktos)
  4. LatinArctūrus

Proto-Indo-European *wer-der. Ancient Greek οὖρος (oûros) Ancient Greek Ᾰ̓ρκτοῦρος (Ărktoûros)bor. Latin Arctūrus Borrowed from Ancient Greek Ἀρκτοῦρος (Arktoûros), from ἄρκτος (árktos, “bear”) + οὖρος (oûros, “guard”).

Quick answers

What does Arctūrus mean in Latin?
Arctūrus, a proper noun, means “the star Arcturus; the constellation Boötes”.
What is the genitive of Arctūrus?
The genitive singular is Arctūrī. Arctūrus is masculine, second declension.
How do you pronounce Arctūrus?
In classical Latin, [arkˈtuː.rʊs]; in ecclesiastical (church) Latin, [arkˈtuː.rus].
Where does Arctūrus come from?
Proto-Indo-European *h₂ŕ̥tḱos → Proto-Hellenic *árktos → Ancient Greek ᾰ̓́ρκτος (ắrktos) → Latin Arctūrus.