γραμματική ἐστιν ἐμπειρία τῶν παρὰ ποιηταῖς τε καὶ συγγραφεῦσιν ὡς ἐπὶ τὸ πολὺ λεγομένων → grammar is a practical knowledge of the usage of poets and writers of prose
διαφύσσω, ἐξαντλέω, ἐξαφύω, ἐξαρύω, ἀπαρύτω, ἀντλέω, ἀπαντλέω