Etymology and origin of the Latin word arbitrator
- Confidence
- Established
- Formation
- Derivation
- Ultimate origin
- Latin arbiter
Etymology tree
From the same root
Forms
arbitrātor m (genitive arbitrātōris); third declension[1][2]
Etymology
It is formed from Latin arbitror + -tor.[1][3]
Earliest recorded meaning
Its first records are an ancient glossary, which equates it with Greek μεσίτης (mesítēs, “mediator”),[4][1] and an inscription calling Jupiter arbitrator, “master” or “lord”, a title that also gave its name to the Pentapylon Jovis arbitratoris in the tenth region of Rome.[5]
Semantic evolution
In Late Latin it was used like arbiter in the sense of master or ruler,[5] and Tertullian has the feminine arbitrātrīx, “mistress”.[1]
In Medieval Latin it became a legal word: a mediator who settles a dispute, an umpire, an official delegated to act for a community, a peace negotiator and a town's envoy.[6] In British usage the arbitrator was an umpire allowed more discretion than an arbiter,[7] and Du Cange glosses it as an amicable compounder.[8] Late medieval jurists wrote treatises on the difference between arbiter and arbitrator.[9] English arbitrator comes from it.[3]
Timeline
- 1256 – Köbler records it in a constitution of this year.[10]
- 1279 – The Gascon rolls name parties' chosen arbitratores and amicable compounders.[7]
- early 15th century – Borrowed into English as arbitrator.[3]
- 1481 – Baptista de Sancto Blasio writes on a hundred differences between arbiter and arbitrator.[9]
Meanings
Noun
- (Late Latin) A master, ruler, lord, as a title of Jupiter.[5][2]
- A mediator.[4][6]
- (Medieval Latin, law) An arbitrator, umpire.[6][7][11]
- (Medieval Latin) An official delegate; a peace negotiator; a town's envoy.[6]
Related words
- arbiter
- English arbitrator
Usage notes
Medieval law distinguished the arbitrator, who could settle a dispute as an amicable compounder, from the arbiter, who decided by law;[7][8] British sources describe the arbitrator as allowed more discretion.[7][8]
References
- ^ a b c d Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
- ^ a b Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
- ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ a b Goetz, Georg (1888–1923), Corpus glossariorum Latinorum, Leipzig: Teubner; vols. VI–VII Thesaurus glossarum emendatarum, digital ed. CGLO, Munich: Bayerische Akademie der Wissenschaften
- ^ a b c Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b c d Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
- ^ a b c d e Latham, R. E., D. R. Howlett, R. K. Ashdowne, et al. (1975–2013), Dictionary of Medieval Latin from British Sources, London: British Academy / Oxford University Press
- ^ a b c du Cange, Charles du Fresne, et al. (1883–1887), Glossarium mediae et infimae latinitatis, augmented ed. by Léopold Favre, Niort: L. Favre
- ^ a b Ramminger, Johann, Neulateinische Wortliste: Ein Wörterbuch des Lateinischen von Petrarca bis 1700, www.neulatein.de
- ^ Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
Cite this entry
“Arbitrator.” Etymologically, 7 Nov. 2026, etymologically.com/la/arbitrator. Accessed 8 Nov. 2026.
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