τυφὼς γὰρ ἐκβαίνειν παρασκευάζεται → a hurricane is getting ready to burst
hydraula: ae, or hydraules, ae, m., = ὑδραύλης>,I one who plays on the waterorgan, Suet. Ner. 54; Petr. 36; acc. -am, Mart. Cap. 9, § 924.