What does aoristus mean in Latin?

aoristus, a adjective, means “aorist”.

How do you pronounce aoristus?

In classical Latin, [a.ɔˈrɪs.tʊs]; in ecclesiastical (church) Latin, [a.oˈris.tus].

adjectivefirst/second-declension adjective

aoristus (feminine aorista, neuter aoristum)

Classical[a.ɔˈrɪs.tʊs]Ecclesiastical[a.oˈris.tus]

singular
form	masculine	feminine	neuter
nominative	aoristus	aorista	aoristum
genitive	aoristī	aoristae	aoristī
dative	aoristō	aoristae	aoristō
accusative	aoristum	aoristam	aoristum
ablative	aoristō	aoristā	aoristō
vocative	aoriste	aorista	aoristum

plural
form	masculine	feminine	neuter
nominative	aoristī	aoristae	aorista
genitive	aoristōrum	aoristārum	aoristōrum
dative	aoristīs	aoristīs	aoristīs
accusative	aoristōs	aoristās	aorista
ablative	aoristīs	aoristīs	aoristīs
vocative	aoristī	aoristae	aorista

From Ancient Greek ἀόριστος (aóristos).