ἐπιστήμων, ἐπιστημον, genitive ἐπιστημονος, (ἐπίσταμαι), intelligent, experienced (especially one having the knowledge of an expert; cf. Schmidt, chapter 13 §§ 10, 13): Jas_3:13. (From Homer down; the Sept..)

ἐπιστήμων epistēmōn 1x knowing, discreet, understanding, Jas_3:13

ἐπιστήμων , -ον , gen ., -ον oς (ἐπίσταμαι ), [in LXX : Deu_1:13 ; Deu_4:6 , Isa_5:21 ( H995 ni .), 1Es_8:44 , Sir_10:25 ; Sir_21:15 , etc.;] knowing, skilled: Jas_3:13 .†

ἐπιστήμων [page 246] For this adj. ( Jas_3:13 , cf. Deu_1:13 ; Deu_4:6 ), which carries with it a certain idea of expert knowledge, see P Oxy XII. 1469 .12 (A.D. 298) ἀεὶ γὰρ ὁ δημόσιος γ [εω ]μέτρης ἐπιστήμων ὢν τῶν τόπω [ν ] αὐτ̣ω̣̑ν κτλ ., and cf. the use of the subst. in P Fay 106 .22 ( c. A.D. 140) οἱ τὴν ἰατρικὴν ἐπιστή [μην ] μεταχειριζόμενοι , those practising the profession of physician, P Oxy VI. 896 .5 (A.D. 316) ζωγράφου τὴν ἐπιστήμην , a painter by profession. In Vett. Val. p. 211 .18 τὸ γὰρ θεῖον βουληθὲν προγινώσκειν ἀνθρώπους τὰ μέλλοντα εἰς φῶς προήγαγε τὴν ἐπιστήμην , δἰ ἧς τὸ καθ᾽ αὑτὸν ἕκαστος προγινώσκων εὐθυμότερος μὲν πρὸς τὸ ἀγαθόν , the editor defines ἐπιστήμη as mathesis. The noun survives in MGr = knowledge, science.

ἐπιστήμων ἐπιστήμων, ονος, [Etym: ἐπίσταμαι] "knowing, wise, prudent", ἐπ. βουλῇ τε νόῳ τε Od. "acquainted with" a thing, "skilled or versed in", c. gen., Thuc. , etc. c. inf. "knowing how to do", Plat. , etc.— adv., ἐπιστημόνως "with knowledge": comp. -έστερον, Xen. ; Sup. -έστατα, Plat. "possessed of perfect knowledge", id=Plat.

ἐπιστήμων, -ον, genitive, -ονoς (ἐπίσταμαι) [in LXX: Deu.1:13 4:6, Isa.5:21 (בִּין ni.), I Est.8:44, Sir.10:25 21:15, etc. ;] knowing, skilled: Jas.3:13.† (AS)