sidus

Esperanto

Verb

sidus

1. conditional of sidi

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Gothic

Romanization

sidus

1. Romanization of 𐍃𐌹𐌳𐌿𐍃

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Ido

Verb

sidus

1. conditional of sidar

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Latin

Etymology

Compare Ancient Greek σίδηρος (sídēros). Some derive this from Proto-Indo-European *sweyd-, whence Latin sūdor, Greek ἱδρώς (hidrṓs), English sweat.

Pronunciation

• (Classical) IPA^(key): /ˈsiː.dus/, [ˈsiː.dʊs]

Noun

sīdus n (genitive sīderis); third declension

1. constellation, asterism
2. a star
3. (poetic) the night sky
4. (figuratively) a season (of the year)

Inflection

Third declension neuter.

Case	Singular	Plural
nominative	sīdus	sīdera
genitive	sīderis	sīderum
dative	sīderī	sīderibus
accusative	sīdus	sīdera
ablative	sīdere	sīderibus
vocative	sīdus	sīdera

Derived terms

• consīderō
• dēsīderō
• sīderālis
• sīdereus
• sīderor

See also

• stella
• astrum

Descendants

• French: sidéral, sidérale

References

• sidus in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• sidus in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• “sidus” in Félix Gaffiot’s Dictionnaire Illustré Latin-Français, Hachette (1934)
• Carl Meissner; Henry William Auden (1894) Latin Phrase-Book^[1], London: Macmillan and Co.
  • a star-light night: nox sideribus illustris
    
  • the fixed stars: sidera certis locis infixa
    
  • astronomy: astrologia (pure Latin sidera, caelestia)
    
  • an astronomer: spectator siderum, rerum caelestium or astrologus
    
• sidus in Harry Thurston Peck, editor (1898) Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers
• sidus in William Smith, editor (1854, 1857) A Dictionary of Greek and Roman Geography, volume 1 & 2, London: Walton and Maberly