ἑστηκέναι

From LSJ

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

Source

Greek > English (Woodhouse Verbs Reversed)

(see also ἵστημι): be stationary