Etymologically

Etymology and origin of the Latin word tribunus

Confidence
Established
Formation
Derivation
First attested
234–149 BC, Cato
Ultimate origin
Proto-Indo-European (*tri-dʰh₁-u-)
Etymology tree
inherited borrowed derived
Latin tribus
Latin tribunus

Pronunciation

  • Classical: [trɪˈbuː.nʊs][1]
  • Ecclesiastical: [triˈbuː.nus][1]

Forms

tribūnus m (genitive tribūnī); second declension[1]

Etymology

It is formed from Latin tribus + -nus, from the word for a division of the people, “tribe”; it first meant the head of a tribe.[2][3][1][4] De Vaan, following Weiss, derives tribus from Proto-Italic *triþu- (“tripartite entity”), from Proto-Indo-European *tri-dʰh₁-u- (“tripartite division”), a “thing made in three”; compare Umbrian trifu (“district”).[5]

Earliest recorded meaning

Cato speaks of the pay a soldier received ā tribūnō aerāriō, “from the paymaster”.[2] An old inscription has tribūnos mīlitāre (military tribune).[2] Köbler dates it from Cicero.[6]

Semantic evolution

In early Rome the tribūnus commanded the troops each tribe supplied (tribūnus celerum was the commander of the cavalry).[2][3] The title then went to several offices: the military tribunes with consular power who replaced the consuls between 445 and 367 BC; the six senior officers of a legion (tribūnus mīlitum); officers of the urban and praetorian cohorts; the tribūnī aerāriī, who collected the war tax and paid the army; and above all the tribunes of the plebs, first appointed by tradition in 494 BC to protect the plebeians.[2][1] Towns and associations also had tribunes.[2]

In Medieval Latin it was a city police officer under a count, or the same as a vicārius or centēnārius.[7] English tribune is recorded from the late 14th century.[4]

Timeline

  • 234–149 BC – Cato uses tribūnus aerārius.[2][6]
  • 81–43 BC – Cicero speaks of the tribunes of the plebs vetoing the consuls' law.[2][6]
  • 59 BC–17 AD – Livy writes of the tribūnus celerum and of military tribunes with consular power.[2][6]
  • late 14th century – English tribune.[4]

Meanings

Noun

  1. (early Rome) The commander of a tribe's troops;[2] tribūnus celerum, the commander of the cavalry.[2]
  2. A military tribune (with consular power, 445–367 BC);[2] one of the six senior officers of a legion.[2][1]
  3. An officer of the urban or praetorian cohorts.[2]
  4. tribūnus aerārius, a paymaster; later a member of a class of judges.[2][3]
  5. tribūnus plēbis, a tribune of the plebs.[2][1]
  6. An official of a town or association.[2]
  7. A chief, commander.[3][1][8]
  8. (Medieval Latin) A city police officer under a count.[7]

Word family

References

  1. ^ a b c d e f g h Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o p q 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 c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  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 c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  7. ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  8. ^ Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
Cite this entry

“Tribunus.” Etymologically, 18 Oct. 2026, etymologically.com/la/tribunus. Accessed 19 Oct. 2026.

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