Etymologically

Etymology and origin of the Latin word obses

Confidence
Established
Formation
Derivation
First attested
epitaph of Scipio Barbatus
Ultimate origin
Proto-Indo-European (*sed-)

Pronunciation

  • Classical: [ˈɔp.sɛs][1]
  • Ecclesiastical: [ˈɔb.ses][1]

Forms

obses m or f (genitive obsidis); third declension[1] The old spelling opses appears in the first epitaph of the Scipios.[2][3] Caesar and Livy have the genitive plural obsidium.[3]

Etymology

It is formed from ob- (“before, against”) and the root of sedeō (“to sit”), as ⟨*ob-sed-s⟩; the TLL takes it from obsideō (“to sit by, occupy”), comparing praeses from praesideō.[2][4][1] De Vaan lists it among the derivatives of the simple verb, which he traces to Proto-Italic *sed-ē- (“to be seated”) and Proto-Indo-European *sed-eh₁-, cognate with Ancient Greek ἕζομαι (hézomai, “to sit down”), Gothic 𐍃𐌹𐍄𐌰𐌽 (sitan, “to sit”) and Old Church Slavonic сѣдѣти (sěděti, “to sit”).[5]

Earliest recorded meaning

The epitaph of Lucius Cornelius Scipio Barbatus says that he subdued all Lucania and led away hostages: subigit omne Loucanam opsidesque abdoucit.[2][3]

Semantic evolution

An obses is a hostage, a person handed over as a pledge that a treaty will be kept.[2][1] By extension it is any surety or guarantee, of persons (Cicero says the republic embraces a man as a hostage of his consulship) and of abstract things (Cicero: the Roman people hold many pledges from us).[2] It is masculine, rarely feminine.[4][2]

Church Latin glosses it “hostage”;[6] in medieval Latin it is also a security or bail, a guarantor, and a hostage given under a contract.[7]

Timeline

  • 81–43 BC – Cicero of a person or thing as a pledge.[2][8]
  • c. 50 BC – Caesar has the genitive plural obsidium.[3][8]

Meanings

Noun

  1. A hostage.[2][1][6]
  2. A surety, pledge, guarantee.[2][1]
  3. (Medieval Latin) A security, bail; a hostage under a contract.[7]

Word family

  • obsidium

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 Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c d Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  4. ^ a b 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. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  7. ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  8. ^ a b Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry

“Obses.” Etymologically, 18 Oct. 2026, etymologically.com/la/obses. Accessed 19 Oct. 2026.

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