FROM STRONG’S HEBREW DICTIONARY (1890)

Strong’s Hebrew Dictionary (1890) — public domain, printed whole.

leqach leh'-kakh — from 3947; properly, something received, i.e. (mentally) instruction (whether on the part of the teacher or hearer); also (in an active and sinister sense) inveiglement:--doctrine, learning, fair speech.

see HEBREW for 03947