-orum
Latin
Pronunciation
- (Classical Latin) IPA(key): /ˈoː.rum/, [ˈoːrʊ̃ˑ]
- (modern Italianate Ecclesiastical) IPA(key): /ˈo.rum/, [ˈɔːrum]
Etymology 1
Regularly declined forms of -us (suffix forming adjectives).
Suffix
Etymology 2
A regularly declined form of -or (suffix forming abstract nouns).