ἄλδω

From LSJ

ψυχῶν σοφῶν φροντιστήριον → thought-shop of wise souls

Source

Spanish (DGE)

τὸ αὔξω quizá subj. aor. de ἀλδαίνω Hdn.Gr.1.440, pero interpr. como pres. τὸ ἄ. τὸ αὐξάνω Sch.Lyc.319S.