Etymology and origin of the Latin word obsessor
- Confidence
- Established
- Formation
- Derivation
- First attested
- c. 250–184 BC, Plautus
- Ultimate origin
- Latin (sedeō)
Etymology tree
Forms
obsessor m (genitive obsessōris); third declension[1]
Etymology
It is from Latin obsideō (“to sit at; to besiege”) + -tor,[2][3] also spelled ⟨ops-⟩.[2] The verb is a compound of ob- and sedeō (“to sit”),[4] which goes back to Proto-Italic *sed-ē- and Proto-Indo-European *sed-eh₁- (“to be seated”).[4]
Earliest recorded meaning
It is first found in Plautus' Pseudolus, with a genitive: fui hodie solus obsessor fori, “I alone have haunted the forum today”.[2][5][3]
Semantic evolution
The early sense is one who occupies or haunts a place: Ovid calls a water snake obsessor of living waters.[2][5] Lewis and Short find it only in early Latin and poetry.[5] In military use it means a besieger: Cicero has obsessor curiae, Livy the besieger of Luceria, and Tacitus writes that a fire brought more fear to the besieged than to the besiegers.[5][2]
Timeline
- c. 250–184 BC – Plautus uses it of someone haunting the forum.[2][5][6]
- 81–43 BC – Cicero uses it of besieging the senate house.[5][6]
- 43 BC–18 AD – Ovid uses it of a snake haunting a spring.[2][5][6]
- 98–115 AD – Tacitus uses it of besiegers.[2][5][6]
Meanings
Noun
References
- ^ Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
- ^ a b de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
- ^ a b c d e f g h i j Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry
“Obsessor.” Etymologically, 20 Oct. 2026, etymologically.com/la/obsessor. Accessed 20 Oct. 2026.
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