- Confidence
- Established
- Formation
- Derivation
- First attested
- Cato
- Ultimate origin
- Proto-Indo-European (*h₂eyos)
Pronunciation
Forms
aerārius (feminine aerāria, neuter aerārium); first/second-declension adjective[1]
Etymology
It is from Latin aes (“copper, bronze, money”) + -ārius.[2][1] De Vaan traces ⟨aes⟩ to Proto-Italic *ajos, from Proto-Indo-European *h₂ei-os (“bronze”).[3]
Earliest recorded meaning
The OLD's earliest citation is from Cato, of money, and Köbler cites Cicero for the noun.[2][4] Köbler dates Cato 234–149 BC.[4]
Semantic evolution
As an adjective it meant of copper or bronze, aerārium metallum a copper mine and faber aerārius a coppersmith, as in Vitruvius and Livy; and of coinage, money or the treasury, as in Cato and Varro's tribūnī aerāriī.[2][5][6] As a noun it was a coppersmith, as in Petronius, and an aerārius, a citizen of the lowest class, not enrolled in a tribe, who paid only a poll tax, as in Varro and Cicero.[2][6]
In Medieval Latin it was a coppersmith, brass-founder, moneyer, glossed in Ælfric with Old English ārsmiþ.[7][8] German ärarisch “of the state treasury” is from it.[4]
Timeline
- 234–149 BC – Cato uses it of money.[2][4]
- 116–27 BC – Varro uses it of the lowest class of citizens.[2][4]
- before 66 AD – Petronius uses it of a coppersmith.[2][4]
Meanings
Adjective
Noun
Word family
- obaerārius
- aeraria
- aerārium
Related words
- aes
- obaerātus
References
- ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j k Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ 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 Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b c Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
- ^ 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
- ^ Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
Cite this entry
“Aerarius.” Etymologically, 17 Oct. 2026, etymologically.com/la/aerarius. Accessed 17 Oct. 2026.
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