LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Ismēnus

Ismēnus m sg (genitive Ismēnī)
Classical[ɪsˈmeː.nʊs]Ecclesiastical[izˈmɛː.nus]

Meaning

  1. A river of Boeotia, flowing near the city of Thebae

Declension

declension
formsingularplural
nominativeIsmēnus—
genitiveIsmēnī—
dativeIsmēnō—
accusativeIsmēnum—
ablativeIsmēnō—
vocativeIsmēne—

Ismēnus or -ŏs, i, m., = Ἰσμηνός,
I. a river of Bœotia, near Thebes, Plin. 4, 7, 12, § 25; Ov. M. 2, 244; Stat. Th. 1, 40; 9, 404.—
II. Derivv.
A. Ismēnĭus, a, um, adj., = Ἰσμήνιος, of or belonging to Ismenus, Ismenian, poet. for Theban, Ov. M. 13, 682: heros, i. e. Polynices, Stat. Th. 2, 307.—
B. Ismēnis, ĭdis, f., = Ἰσμηνίς, a Theban woman, Ov. M. 3, 169; 733; 4, 31.

Origins

Borrowed from Ancient Greek Ἰσμηνός (Ismēnós).

In the Academy Smith's classical dictionaries

Biography & mythologyIsmenusIsmenus (Ἰσμήνος), a son of Asopus and Metope, from whom the Boeotian river Ladon was believed to have derived its name of Ismenus. (Apollod. 3.12.6.)…

Quick answers

What does Ismēnus mean in Latin?
Ismēnus, a proper noun, means “A river of Boeotia, flowing near the city of Thebae”.
What is the genitive of Ismēnus?
The genitive singular is Ismēnī. Ismēnus is masculine, second declension.
How do you pronounce Ismēnus?
In classical Latin, [ɪsˈmeː.nʊs]; in ecclesiastical (church) Latin, [izˈmɛː.nus].