Etymologically

Etymology and origin of the Latin word sirus

Confidence
Established
Formation
Borrowing
First attested
116–27 BC, Varro (in Greek letters)
Borrowed from
Ancient Greek σιρός
Ultimate origin
Ancient Greek σιρός

Pronunciation

  • Classical: [ˈsiː.rʊs][1]
  • Ecclesiastical: [ˈsiː.rus][1]

Forms

sīrus m (genitive sīrī); second declension[1]

Etymology

It is borrowed from Ancient Greek σιρός (sirós, “pit for storing grain”),[2][1][3] also spelled σειρός (seirós).[2][4] In Greek it is a technical word without an etymology, which Beekes takes to be Pre-Greek; the quantity of its vowel varies.[5]

Earliest recorded meaning

Varro still writes it in Greek letters;[6] in Latin script it is found in Vitruvius and Columella,[6][4] for an underground pit in which grain was stored, a silo.[2][6]

Semantic evolution

Its meaning did not change: Columella, Quintus Curtius and Pliny the Elder all use it of an underground granary.[6][7] L&S compares cumera, a grain bin.[6]

English silo comes from Spanish silo, which has traditionally been derived from it, although the change from /r/ to /l/ is unexplained.[8]

Timeline

  • 116–27 BC – Varro writes the word in Greek letters.[6][4]
  • c. 84–c. 25 BC – Vitruvius uses it.[6][4]
  • 1st century AD – Columella and Quintus Curtius use it for an underground granary.[6][7][4]
  • 23/24–79 AD – Pliny the Elder uses it.[6][4]

Meanings

Noun

  1. An underground pit for storing grain, a silo.[2][6][9]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ Saalfeld, Günther Alexander (1874), Index Graecorum vocabulorum in linguam latinam translatorum, Berlin: Weidmann
  4. ^ a b c d e f Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ Beekes, Robert S. P. (2010), Etymological Dictionary of Greek, with the assistance of Lucien van Beek, Leiden Indo-European Etymological Dictionary Series 10, Leiden; Boston: Brill
  6. ^ a b c d e f g h i j Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  7. ^ a b Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
  8. ^ Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  9. ^ Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn

Related etymologies

Cite this entry

“Sirus.” Etymologically, 24 Oct. 2026, etymologically.com/la/sirus. Accessed 24 Oct. 2026.

Last edited on . ·