Almo, almenis, mas. gener. A riuer neere to Rome, where the priestes of Cybele vsed to wash them, when they had done their bloudie sacrifice. It is also the name of a man, and of a towne in Thessaly.
Almus, mi, The sonne of Sisyphus.
Lewis and Short: Latin dictionary
Almo, ōnis, m., a small stream, almost entirely dry in summer, on the south side of Rome, which, crossing the Via Appia and Via Ostiensis, flows into the Tiber (now the Aquataccia). In it the priests of Cybele annually washed the image and sacred implements of the temple of that goddess; v. Ov. F. 4, 337; 6, 340; Mart. 3, 47; Luc. 1, 600; cf. Mann. Ital. 1, 588; Müll. Roms Campagn. 2, 400 sq.—As a river-god, father of the nymph Lara, Ov. F. 2, 601.