Ἀργεντόκοξος

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

Spanish (DGE)

-ου, ὁ Argentocoxo caledonio contemporáneo de Septimio Severo, D.C.76.16.5.