ὕδρευμα
From LSJ
Τὸ νικᾶν αὐτὸν αὑτὸν πασῶν νικῶν πρώτη τε καὶ ἀρίστη. Τὸ δὲ ἡττᾶσθαι αὐτὸν ὑφ' ἑαυτοῦ πάντων αἴσχιστόν τε ἅμα καὶ κάκιστον. → Τo conquer yourself is the first and best victory of all, while to be conquered by yourself is of all the most shameful as well as evil
English (LSJ)
ατος, τό,
A watering-place, well, tank, Str.16.4.14, Peripl.M. Rubr.25,26, Ostr.Bodl. iii 245 (i A. D.), Ptol.Geog.1.10.2, Thd.Je.39(46), 10, OGI701.12 (Egypt, ii A. D., pl.), etc.; irrigation-system, PFlor.50.15 (ii A. D.), etc.