charmer, gently, secret, softly
Concise Bible Dictionary:
In Psalm 58:5 and Jeremiah 8:17 the allusion is to those who can charm serpents, probably by soft and gentle sounds. In Deuteronomy 18:11 and Isaiah 19:3 it is associated with idolatry and sorcerers: these also carry on their incantations with low mutterings. See DIVINATION.
Strong’s Dictionary of Hebrew Words:
Meaning:
from an unused root perhaps meaning to move softly; (as a noun) a necromancer (from their soft incantations), (as an adverb) gently
KJV Usage:
charmer, gently, secret, softly