LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Olmius

Olmius m sg (genitive Olmiī or Olmī)
Classical[ˈɔɫ.mi.ʊs]Ecclesiastical[ˈɔl.mi.us]

Meaning

  1. masculinesingularA river of Boeotia and tributary river of the Permessus

Declension

declension
formsingularplural
nominativeOlmius—
genitiveOlmiī
Olmī		—
dativeOlmiō—
accusativeOlmium—
ablativeOlmiō—
vocativeOlmī—

Origins

Borrowed from Ancient Greek Ὀλμειός (Olmeiós).

Quick answers

What does Olmius mean in Latin?
Olmius, a proper noun, means “A river of Boeotia and tributary river of the Permessus”.
What is the genitive of Olmius?
The genitive singular is Olmiī. Olmius is masculine, second declension.
How do you pronounce Olmius?
In classical Latin, [ˈɔɫ.mi.ʊs]; in ecclesiastical (church) Latin, [ˈɔl.mi.us].