γράμματα
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
English (Woodhouse)
archives, document, letters, writing, account books, documents, legal document, letters of the alphabet, letters, papers, records, what is written, written bond, written characters