ἐμπυρίζω
From LSJ
ὁ γὰρ μανθάνων κιθαρίζειν κιθαρίζων μανθάνει κιθαρίζειν → he who is learning the harp, learns the harp by harping
English (LSJ)
A = ἐμπυρεύω, LXX Jo.8.28, D.S.2.36, 12.43:—Pass., Chron.Lind.D.41, PTeb.5.135 (ii B. C.), Diog.Oen.8, Alex.Trall. Febr.2; [ψυχὴ] τοῖς πάθεσιν -ομένη Simp. in Epict.p.126D. (In Thd. Ge.4.4,5 ἐ. is a mistranslation due to confusion of Hebr. yiša' and 'iššeh.)
German (Pape)
[Seite 818] anzünden, verbrennen; τὰς ἐπαύλεις D. Sic. 12, 43, öfter; χώραν, neben δενδροτομεῖν, 2, 36; vgl. Lob. zu Phryn. 335.