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
subs.
Doctor's prescription: P. σύγγραμμα, τό (Xen.). Time limit after which a claim is disqualified: P. προθεσμία, ἡ.