ἑταιρεῖον

From LSJ

ὕδωρ δὲ πίνων οὐδὲν ἂν τέκοι σοφόν → by drinking water you would never create anything great

Source

German (Pape)

[Seite 1046] τό, ein Hurenhaus, Schol. Ar. Equ. 873.