Abbott-Smith Manual Greek Lexicon
ἐπιστήμων (G1990)
1 ἐπιστήμων , -ον , gen., -ονoς ( ἐπίσταμαι ) [in LXX: De 1:13 4:6 , Is 5:21 ( בִּין ni.), I Es 8:44 , Si 10:25 21:15 , etc. ;] knowing, skilled : Ja 3:13 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain