γραμματοδιδασκαλεῖον
From LSJ
τί ἦ μοι ταῦτα περὶ δρῦν ἢ περὶ πέτρην → but what is this to me, about an oak or a rock | but what are these things about a tree or a rock to me | why all this about trees and rocks | why all this about what we have nothing to do with | but why am I off on this tangent
English (LSJ)
τό,
A = γραμματεῖον11, Plu.2.712a, al.
German (Pape)
[Seite 504] τό, die Schule, Plut. Symp. 7, 8, 3; Luc.
Greek (Liddell-Scott)
γραμμᾰτοδῐδασκαλεῖον: τό, = γραμματεῖον 4, Πλούτ. 2. 712Α.