Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

Ăchĕron, ntis (collat. form Acheros, Liv. 8, 24, 11; the form Acheruns, untis, see below), m., = Ἀχέρων (interpr. ὁ ἄχεα ῤέων, the stream of woe).

  1. I. A river in Epirus, which flows through the Lake Acherusia into the Ambracian Gulf, now Suli, Liv. 8, 24, 3; Plin. 4, 1, 1, § 4.
  2. II. A fabulous river in the Lower World: illi qui fluere apud inferos dicuntur, Acheron, Cocytus, Styx, etc., Cic. N. D. 3, 17: via Tartarei quae fert Acherontis ad undas, Verg. A., 6, 295 al.
    Hence,
    1. B. The Lower World itself: Acherontem obibo, ubi mortis thesauri objacent, Enn. ap. Fest. p. 201 Müll. (Trag. v. 278 ed. Vahl.): flectere si nequeo Superos, Acheronta movebo, Verg. A. 7, 312: perrupit Acheronta Herculeus labor, Hor. C. 1, 3, 36. In prose: ut eum suo sanguine ab Acheronte, si possent, cuperent redimere, Nep. Dion. 10, 2.
      Hence, Ăchĕrontēus, a, um, adj., pertaining to the Acheron, Claud. Rapt. Pros. 2, 351.