LATIN DICTIONARYLexicon Latīnum
noun · neutersecond declension

aerārium

aerārium n (genitive aerāriī or aerārī)
Classical[ae̯ˈraː.ri.ũː]Ecclesiastical[eˈraː.ri.um]

Meaning

  1. the state treasury
    (specifically) The place in the Temple of Saturn at Rome, where the public treasure was kept.
    🖙 in the Imperial period, distinguished from the assets bound to the function of the Emperor called fiscus and his private property called patrimōnium

Declension

declension
formsingularplural
nominativeaerāriumaerāria
genitiveaerāriī
aerārī		aerāriōrum
dativeaerāriōaerāriīs
accusativeaerāriumaerāria
ablativeaerāriōaerāriīs
vocativeaerāriumaerāria

Charlton Lewis's shorter dictionary for students: the same scholarship in plain, modern definitions.

aerārium ī, n
aerarius, part of the temple of Saturn at Rome, in which the public treasure was kept, the treasury: referre (pecuniam) in aerarium: pecunia data tibi ex aerario.—Hence, the public treasure, finances: cum effudisset aerarium: commune, N.: pecuniā uti ex aerario, Cs.: rationes ad aerarium referre, to render an account to the treasury.—Here the public archives and the standards were kept: tabulae testimenti ... ut in aerario ponerentur, Cs.: signa ex aerario prompta, L.: aerarium sanctius, a fund reserved for extreme public necessity, Cs., C.: privatum, a special fund, N.: militare, Ta.

Origins

  1. Proto-Indo-European*h₂ey-?
  2. Proto-Indo-European*h₂éyos
  3. Proto-Italic*ajos
  4. Proto-Italic*aos
  5. Latinaerārium

Proto-Indo-European *-yósder. Proto-Italic *-āzios Latin -āriusnom. Latin -ārium Latin aerārium From aes (“bronze, money”) + -ārium (“place for”).

Descendants
  • Catalanerari
  • GermanÄrar
  • Italianerario
  • Portugueseerário
  • Spanisherario

In English words that came into English from aerārium

  • aerariumaerārium

In the Academy Smith's classical dictionaries

AntiquitiesAerariumAerarium (τὸ δημοσιον), the public treasury at Rome. After the banishment of the kings the temple of Saturn and Ops was employed, upon the proposition…

Quick answers

What does aerārium mean in Latin?
aerārium, a noun, means “the state treasury”.
What is the genitive of aerārium?
The genitive singular is aerāriī. aerārium is neuter, second declension.
How do you pronounce aerārium?
In classical Latin, [ae̯ˈraː.ri.ũː]; in ecclesiastical (church) Latin, [eˈraː.ri.um].
Where does aerārium come from?
Proto-Indo-European *h₂ey-? → Proto-Indo-European *h₂éyos → Proto-Italic *ajos → Proto-Italic *aos → Latin aerārium.