Etymologically

concilium

Etymology and origin of the Latin word concilium

Confidence
Probable
Formation
Compound
First attested
Plautus
Ultimate origin
Proto-Indo-European (*kelh₁-)

Pronunciation

  • IPA (Classical): [kɔŋˈkɪ.li.ũː][1]
  • IPA (Ecclesiastical): [kon̠ʲˈt͡ʃiː.li.um][1]

Forms

concilium n (genitive conciliī or concilī); second declension[1]

Etymology

It is probably from Latin com- + calō (“to call, summon”) + -ium, an assembly called together.[2][3][4] The verb is inherited from Proto-Italic *kela-, inherited from Proto-Indo-European *kelh₁- (“to call”).[5]

The TLL notes that the meaning of conciliō “to bring together, win over” fits this poorly.[6]

Earliest recorded meaning

It is found in Plautus in the sense “debate, deliberation”: “here was a debate”.[5][2]

Semantic evolution

From Lucretius onwards it meant a gathering or assembly, especially the assembly of the plebs at Rome, as in inscriptions.[5][2] Lucretius used it of the union of atoms, and Cicero of the assembly of the gods and of men united by law in states.[2][4]

It also meant a hearing before a council, as in Livy.[2] In Christian Latin it was a church council or synod.[7] English council came from it through Old French in the early 12th century, first in the Church sense.[8]

Timeline

  • c. 250–184 BC – Plautus uses it of a debate.[5][2]
  • 96–55 BC – Lucretius uses it of the union of atoms.[2][7]
  • 81–43 BC – Cicero uses it of the assembly of the gods.[2][4][7]
  • early 12th century – English council is recorded.[8]

Meanings

Noun

  1. An assembly, public meeting, especially of the plebs.[2][1]
  2. A society, association (of men).[2]
  3. A union, connection (of atoms).[2][4]
  4. A company, band, in uno concilio: together.[2]
  5. A hearing (before a council).[2]
  6. A debate, deliberation.[2]
  7. (Christian Latin) A church council, synod.[7]

Word family

  • conciliō

Usage notes

Döderlein distinguishes concilium, a meeting of select persons summoned to deliberate, from contio and comitia, meetings of the whole community.[9]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  4. ^ a b c d Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  5. ^ 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
  6. ^ Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  7. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  8. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  9. ^ Döderlein, Ludwig (1874), Döderlein’s Hand-book of Latin Synonymes, tr. H. H. Arnold, Andover: W. F. Draper

Related etymologies

  • pagina · also from Proto-Indo-European
  • natio · also from Proto-Indo-European
  • sisto · also from Proto-Indo-European
  • proprius · also from Proto-Indo-European
  • collum · also from Proto-Indo-European
  • stringo · also from Proto-Indo-European
  • vinco · also from Proto-Indo-European
  • solidus · also from Proto-Indo-European
Cite this entry

“Concilium.” Etymologically, 15 Oct. 2026, etymologically.com/la/concilium. Accessed 15 Oct. 2026.

Last edited on . ·