φρεατία
From LSJ
οὐ παντὸς ἀνδρὸς ἐς Κόρινθον ἔσθ' ὁ πλοῦς → it's not for every man to make a journey to Corinth, not everyone can afford a trip to Corinth
English (LSJ)
ἡ,
A tank, cistern, X.HG3.1.7, Plb.10.28.2. II opening in a raft, Apollod.Poliorc.191.3.
German (Pape)
[Seite 1304] ἡ, Brunnenbehälter, Xen. Hell. 3, 1,7; Wasserleitung, Pol. 10, 28, 2 u. Sp.