hydromantia
From LSJ
Θεοῦ γὰρ οὐδεὶς χωρὶς (ἐκτὸς οὐδεὶς) εὐτυχεῖ βροτῶν → Nullus beatus absque numine est dei → Glückselig Gott allein und sonst kein Sterblicher
Latin > English (Lewis & Short)
hydrŏmantīa: ae, f., = ὑδρομαντεία>,
I divination by water, hydromancy, Aug. Civ. Dei, 7, 35; Plin. 37, 11, 73, § 192; Isid. 8, 9, 13.