G1990
ἐπιστήμων
knowing
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)
The KJV translates G1990 in the following manner:
knowledge (2x)
Full Thayer's lexicon entry
ἐπιστήμων — epistḗmōn
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..)
1 occurrence