ὕδριος
From LSJ
εὐκαταφρόνητός ἐστι σιγηρὸς τρόπος → a way of life disposed to silence is contemptible (Menander)
English (LSJ)
α, ον, of water, περὶ ὑδρίων ὡροσκοπείων On water-clocks, a lost treatise by Hero, mentioned by Hero Spir.1 Prooemia, and by Procl.Hyp.4.73.