LATIN DICTIONARYLexicon Latīnum
proper noun · masculinesecond declension

Orphe͡us1

Orphe͡us m sg (genitive Orpheī or Orpheos)
Classical[ˈɔr.pʰɛu̯s]Ecclesiastical[ˈɔr.feu̯s]

Meaning

  1. Orpheus

Declension

declension
formsingularplural
nominativeOrphe͡us—
genitiveOrpheī
Orpheos
—
dativeOrpheō—
accusativeOrpheum
Orphea
—
ablativeOrpheō—
vocativeOrphe͡u—

Orpheus (dissyl.), i (Gr. dat. Orphei, Verg. E. 4, 57; Gr. acc. Orphĕă, Verg. E. 6, 30; Ov. P. 3, 3, 41:
I. Orphēā, id. M. 10, 3; voc. Orpheu, Verg. G. 4, 494; Ov. M. 11, 44), m., = Ὀρφεύς, the famous mythic singer of Thrace, son of Œagrus and Calliope, and husband of Eurydice; after her death he led her back from the Lower World, but lost her on turning to look at her, breaking his promise to Pluto. He was one of the Argonauts, Hor. C. 1, 12, 8; Ov. M. 10, 3 sq.; 11, 5 sq.; Hyg. Fab. 164; 251; Verg. E. 4, 55; Cic. N. D. 1, 38, 107 et saep.—Hence,
A. Or-phēus, a, um, adj., = Ὀρφεῖος, of or belonging to Orpheus, Orphean (poet.): vox, Ov. M. 10, 3: lyra, Prop. 1, 3, 42.—
B. Or-phĭcus, a, um, adj., = Ὀρφικός, of or belonging to Orpheus, Orphic (class.): carmen, Cic. N. D. 1, 38, 107: sacra Orphica, id. 3, 23, 58: versus, Macr. S. 1, 18, 17.—
C. Orphăĭcus, a, um, adj., = Ὀρφαικός, Orphic.—In plur. subst.: Orphăĭci, ōrum, m., the Orphics, the followers of Orpheus, Macr. Somn. Scip. 1, 12.

Origins

Borrowed from Ancient Greek Ὀρφεύς (Orpheús).

In the Academy Smith's classical dictionaries

adjectivefirst/second-declension adjective
Orphēus2
Orphēus (feminine Orphēa, neuter Orphēum)
Classical[ɔrˈpʰeː.ʊs]Ecclesiastical[orˈfɛː.us]

Meaning

  1. adjectiveOrphean

Declension

singular
formmasculinefeminineneuter
nominativeOrphēusOrphēaOrphēum
genitiveOrphēīOrphēaeOrphēī
dativeOrphēōOrphēaeOrphēō
accusativeOrphēumOrphēamOrphēum
ablativeOrphēōOrphēāOrphēō
vocativeOrphēeOrphēaOrphēum
plural
formmasculinefeminineneuter
nominativeOrphēīOrphēaeOrphēa
genitiveOrphēōrumOrphēārumOrphēōrum
dativeOrphēīsOrphēīsOrphēīs
accusativeOrphēōsOrphēāsOrphēa
ablativeOrphēīsOrphēīsOrphēīs
vocativeOrphēīOrphēaeOrphēa

Origins

Borrowed from Ancient Greek Ὀρφεῖος (Orpheîos).

In the Academy Smith's classical dictionaries

Quick answers

What does Orphe͡us mean in Latin?
Orphe͡us, a proper noun, means “Orpheus”.
What is the genitive of Orphe͡us?
The genitive singular is Orpheī. Orphe͡us is masculine, second declension.
How do you pronounce Orphe͡us?
In classical Latin, [ˈɔr.pʰɛu̯s]; in ecclesiastical (church) Latin, [ˈɔr.feu̯s].