LATIN DICTIONARYLexicon Latīnum
adjectivefirst/second-declension adjective

acherūsius

acherūsius (feminine acherūsia, neuter acherūsium)
Classical[a.kʰɛˈruː.si.ʊs]Ecclesiastical[a.keˈruː.s̬i.us]

Meaning

  1. adjectiveof or pertaining to the Acheron (a river in the underworld)

Declension

singular
formmasculinefeminineneuter
nominativeacherūsiusacherūsiaacherūsium
genitiveacherūsiīacherūsiaeacherūsiī
dativeacherūsiōacherūsiaeacherūsiō
accusativeacherūsiumacherūsiamacherūsium
ablativeacherūsiōacherūsiāacherūsiō
vocativeacherūsieacherūsiaacherūsium
plural
formmasculinefeminineneuter
nominativeacherūsiīacherūsiaeacherūsia
genitiveacherūsiōrumacherūsiārumacherūsiōrum
dativeacherūsiīsacherūsiīsacherūsiīs
accusativeacherūsiōsacherūsiāsacherūsia
ablativeacherūsiīsacherūsiīsacherūsiīs
vocativeacherūsiīacherūsiaeacherūsia

Ăchĕrūsĭus (old writing Acherunsius), a, um, adj. id..
I. Pertaining to the Acheron in Calabria: aqua, Liv. 8, 24.—
II. Pertaining to the Acheruns (Acheron), or the Lower World: templa, the Lower World, Enn. ap. Cic. Tusc. 1, 21, 48 (Trag. v. 107 ed. Vahl.); in Varr. L. L. 7, § 6 Müll.; and in Lucr. 1, 120; cf. Lucr. 3, 25 and 86: humor, Sil. 13, 398: vita, a life of gloom, Lucr. 3, 1024.—
III. Pertaining to Acheron in Epirus: amnis, Just. 12, 2, 3.

Origins

Derived from Ancient Greek Ἀχερούσιος (Akheroúsios).

Quick answers

What does acherūsius mean in Latin?
acherūsius, a adjective, means “of or pertaining to the Acheron (a river in the underworld)”.
How do you pronounce acherūsius?
In classical Latin, [a.kʰɛˈruː.si.ʊs]; in ecclesiastical (church) Latin, [a.keˈruː.s̬i.us].