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
percis: ĭdis, f., a false reading for pegris, Plin. 32, 11, 53, § 150.
percis, idis. f. :: 角魚
