Etymology and origin of the Latin word seiungo
- Confidence
- Established
- Formation
- Derivation
- First attested
- 96–55 BC, Lucretius
- Ultimate origin
- Proto-Indo-European (*(H)iunégti)
Etymology tree
Forms
sēiungō (present infinitive sēiungere, perfect active sēiūnxī, supine sēiūnctum); third conjugation[1] It is also spelled sējungō.[1][2]
Etymology
It is from Latin sē- (“apart”) + iungō (“to join”).[3][1] De Vaan traces iungō to Proto-Italic *jung-e/o- and the nasal present Proto-Indo-European *(H)iunégti (“to yoke”).[4] Cognate with Ancient Greek ζεύγνυμι (zeúgnumi, “to yoke”), Lithuanian jùngti (“to tie, join, yoke”) and Hittite iuk- (“yoke”).[4]
Earliest recorded meaning
De Vaan dates it from Lucretius,[4] who has things “be separated and set apart”.[2]
Semantic evolution
It means to separate, part or isolate, as Cicero writes that a clause may either be joined to a decree of the senate or separated from it and written out by itself.[3][2] It also means to exclude or dissociate, as Cicero's son writes that jesting is not excluded from study and daily discussion.[3] A further sense is to separate mentally, distinguish: Cicero speaks of a wisdom in doing and speaking that cannot be separated.[3] Lewis & Short compare abiungō and disiungō.[2] Church Latin glosses it to disjoin, sever, separate.[5]
Timeline
- 96–55 BC – Lucretius of things separated.[2][4][6]
- 81–43 BC – Cicero of separating a clause and of inseparable wisdom.[3][6]
Meanings
Verb
- To separate, part, sever, isolate.[3][2][5][1]
- To exclude, dissociate from.[3][1]
- To separate mentally, distinguish.[3]
Word family
- sēiūnctim
- sēiunctiō
Related words
- iungō
- disiungō
References
- ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b c d e f g h Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b c d 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 Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
- ^ a b Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry
“Seiungo.” Etymologically, 19 Oct. 2026, etymologically.com/la/seiungo. Accessed 20 Oct. 2026.
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