ὕδρευσις
From LSJ
ὃ γὰρ βούλεται, τοῦθ' ἕκαστος καὶ οἴεται → what he wishes to be true, each person also believes to be true | what he wishes, each person also believes
English (LSJ)
εως, ἡ,
A = ὑδρεία 1.2, irrigation, Thphr.CP3.9.5.
Greek (Liddell-Scott)
ὕδρευσις: -εως, ἡ, = ὑδρεία, πότισμα, ἄρδευσις, Θεοφρ. περὶ Φυτ. Αἰτ. 3. 9, 5.