Ἁμαδρυάδες
From LSJ
ἔστιν δέ που ἡ μὲν ἐπὶ σώμασι γυμναστική, ἡ δ' ἐπὶ ψυχῇ μουσική → I think I am right in saying that we have physical exercise for the body and the arts for the soul
English (LSJ)
αἱ, (δρῦς) Nymphs whose life depended on that of trees to which they were attached, Pl.Epigr.14, Pherenicus ap.Ath. 3.78b: sg., Ἁμαδρυάς A.R.2.477, Ant.Lib.30.4.
Greek (Liddell-Scott)
Ἁμαδρυάδες: -αἱ, (δρῦς) Νύμφαι ἅμα ταῖς δρυσὶ γεννώμεναι, ἡ δὲ ζωὴ αὐτῶν ἐξηρτᾶτο ἐκ τῆς τῶν δρυῶν ὧν ἦσαν προστάτιδες καὶ ἔνοικοι, Ἀθήν. 78Β: τὸ ἑνικὸν Ἁμαδρυὰς ἀπαντᾷ παρ’ Ἀπολλ. Ροδ. Β. 477: πρβλ. Ἀδρυάς, - εἶδος βαλάνου, «ἁμαδρυάδες, βάλανοι», Ἡσύχ., - «ἁμάδρυα, κοκκύμηλα, Σικυώνιοι», ὁ αὐτός.
German (Pape)
αἱ, Baumnymphen, Nonn. D. 15.415; vgl. Ath. III.78b.