δραστέος
From LSJ
ἔνδον σκάπτε, ἔνδον ἡ πηγὴ τοῦ ἀγαθοῦ καὶ ἀεὶ ἀναβλύειν δυναμένη, ἐὰν ἀεὶ σκάπτῃς → Dig within. Within is the wellspring of Good; and it is always ready to bubble up, if you just dig | Look within. Within is the fountain of the good, and it will ever bubble up, if thou wilt ever dig.
English (LSJ)
α, ον,
A to be done, S.Tr.1204. II δραστέον one must do, Id.OT1443, E.IA1024, D.Chr.12.16.
German (Pape)
Greek (Liddell-Scott)
δραστέος: -α, -ον, ῥηματ. ἐπίθ., ποιητέος, πρακτέος, Σοφ. Τρ. 1204 ΙΙ. δραστέον, πρέπει τις νὰ πράξῃ, ὁ αὐτ. Ο. Τ. 1443, Εὐρ. Ι. Α. 1024.
French (Bailly abrégé)
α, ον :
adj. verb. de δράω.
Spanish (DGE)
-α, -ον
que debe ser hecho ὁποῖα δραστέ' ἐστίν· S.Tr.1204, αὐτοχειρί μοι ... δραστέον τοὔργον S.El.1019, τοῦτο γε δραστέον Pl.Plt.268d, cf. Phlb.20a, Lg.644b.