יָצַת
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 (Strong)
a primitive root; to burn or set on fire; figuratively, to desolate: burn (up), be desolate, set (on) fire ((fire)), kindle.