altarium

Latin

Etymology

Found in post-Classical and later Latin, as a singular of the Classical altāria', the plural of altāre (which was mostly used as the plural). Ultimately from adolēre, probably influenced by altus. See also other forms altar and altāre.

Noun

altārium n (genitive altāriī or altārī); second declension

(high) altar

Declension

Second-declension noun (neuter).

Case	Singular	Plural
Nominative	altārium	altāria
Genitive	altāriī altārī¹	altāriōrum
Dative	altāriō	altāriīs
Accusative	altārium	altāria
Ablative	altāriō	altāriīs
Vocative	altārium	altāria

¹Found in older Latin (until the Augustan Age).

Descendants

Albanian: ilter
Dalmatian: altur
Galician: outeiro
Portuguese: outeiro
Romanian: altar
Spanish: otero
→ Proto-West Germanic: *altāri (see there for further descendants)

Noun

altārium

genitive plural of altar

References

“altarium”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
altarium in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
altarium in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette