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gemellus

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Etymology and origin of the Latin word gemellus

Confidence
Established
Formation
Derivation
First attested
81/79–52/50 BC, Catullus
Ultimate origin
Latin (geminus)
Etymology tree
inherited borrowed derived
Latin geminus
Latin gemellus
Latin trigeminus
Latin gemino
Latin ingemino

Pronunciation

  • Classical: [ɡɛˈmɛl.lʊs][1]
  • Ecclesiastical: [d͡ʒeˈmɛl.lus][1]

Forms

gemellus (feminine gemella, neuter gemellum); first/second-declension adjective[2][3]

Etymology

It is from Latin geminus (“twin”) + -ellus, a diminutive.[2][4][1] De Vaan traces geminus to Proto-Italic *jemno- (“paired”) and Proto-Indo-European *iemH-no- (“paired, connected”), with ⟨g-⟩ perhaps taken from gignō, and compares Sanskrit यम (yamá-, “twin”) and Old Irish emon (“twin”).[5]

Earliest recorded meaning

The TLL finds it from Catullus on,[4] who calls on Castor and gemelle Castoris, "twin of Castor".[2]

Semantic evolution

It means twin-born, twin, mostly in poetry:[3] Ovid has twin offspring and twin brothers, and the Vulgate uses it too.[3][2] As a noun it is a twin.[2][1] It also means forming a pair or double: Vitruvius has paired cylinders, Terentianus Maurus double letters, and Frontinus calls a pair of reservoirs near Rome Gemellī.[2] Catullus uses it mockingly of two men as alike as twins, both equally diseased.[2] An inscription has the dative plural gemellābus.[2]

Timeline

  • 81/79–52/50 BC – Catullus of the twin of Castor.[2][4][6]
  • c. 84–c. 25 BC – Vitruvius of paired parts of a machine.[2]
  • 43 BC–18 AD – Ovid of twin offspring.[2][3]
  • 390–406 AD – The Vulgate.[3]

Meanings

Adjective

  1. Twin, twin-born.[2][3][1]
  2. Forming a pair, double.[2]
  3. As alike as twins.[2]

Noun

  1. A twin;[2][1] (plural) the Gemellī, a pair of reservoirs near Rome.[2][1]

References

  1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o p Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c d e f Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  4. ^ a b c Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  5. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  6. ^ Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry

“Gemellus.” Etymologically, 20 Oct. 2026, etymologically.com/la/gemellus. Accessed 20 Oct. 2026.

Last edited on . ·