Etymologically

Etymology and origin of the Latin word oblongus

Confidence
Established
Formation
Derivation
First attested
c. 250–184 BC Plautus, Mercator More words from the 3rd century BC
Ultimate origin
Latin longus
Etymology tree
inherited borrowed derived
Latin longus
Aromanian lungu
Aromanian ningã
French long
Italian lungo
Romanian lung
Spanish luengo
Latin oblongus
English oblong
From the same root
Latin ēlongō ← longus
Latin longaevus ← longus
Latin longē ← longus
Latin longiter ← longus
Latin longitūdō ← longus
Latin longurius ← longus
Latin perlongus ← longus
Latin praelongus ← longus
Latin prōlongō ← longus
Romanian lungi ← longus
Romanian lungime ← longus
French allonger ← long
French longtemps ← long
Romanian prelung ← lung

Pronunciation

  • Classical: [ɔbˈɫɔŋ.ɡʊs][1]
  • Ecclesiastical: [obˈlɔŋ.ɡus][1]

Forms

oblongus (feminine oblonga, neuter oblongum); first/second-declension adjective[1]

Etymology

It is formed from Latin ob- + longus (“long”).[2][3][4] Etymonline takes the prefix here as perhaps intensive.[5] longus goes back to Proto-Italic *(d)longo- and Proto-Indo-European *dlongʰ-o-.[6]

Earliest recorded meaning

The first example is in Plautus' Mercator, in a description of a person with dark eyes and longish cheeks.[2][3]

Semantic evolution

Its usual sense is longer than broad: Varro uses it of a stone table, Sallust of the oblong huts of Numidian peasants, Livy of a city of oblong shape, and Celsus, Columella, Pliny the Elder and Tacitus of lint, knives, seeds and dishes.[2] Vitruvius has the comparative oblongior.[2][7] Lewis and Short give the sense rather long, longish, and note that it is not in Cicero or Caesar.[7] English took it over in the early 15th century as oblong.[5]

Timeline

  • c. 250–184 BC – Plautus uses it of cheeks.[2][3]
  • 116–27 BC – Varro uses it of a stone table.[2][4]
  • 86–34 BC – Sallust uses it of Numidian huts.[2]
  • c. 84–c. 25 BC – Vitruvius uses the comparative oblongior.[2]
  • early 15th century – Borrowed into English as oblong.[5]

Meanings

Adjective

  1. Longer than broad, oblong, elongated.[2][3]
  2. Rather long, longish.[7][1]

Word family

  • oblongulus

References

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

“Oblongus.” Etymologically, 14 Nov. 2026, etymologically.com/la/oblongus. Accessed 14 Nov. 2026.

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