δῐδασκᾰλ-εῖον · didaskal-eion — LSJ
teaching-place, school, [S.]Fr. 1120.3, Antipho 6.11, Th. 7.29, prob. in Pl. Lg. 764c; εἰς τὸ δ. ἰέναι Aeschin. 1.9; τὰ παιδία τὰ ἐκ τῶν διδασκαλείων Hyp. Eux. 22; τὰ δ. τῶν ῥητορικῶν Epicur. Fr. 50; τὸ Σωκρατικὸν δ. D.H. Dem. 2.
in pl., = δίδακτρα, Ps.-Hdt. Vit.Hom. 26.