Word meanings
Strong's dictionary
from יָדַע; properly, a knowing one; specifically, a conjurer; (by impl) a ghost; wizard.
Strong's Exhaustive Concordance (public domain)
Full lexicon entry (Brown-Driver-Briggs)
יִדְּעֹנִי n.m. familiar spirit (prop. either as knowing, wise (acquianted with secrets of unseen world); or as intimate acquaintance of soothsayer)
Every occurrence
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2 Chronicles 33:6 וְיִדְּעוֹנִ֑י ve.yi.de.'o.Ni · A person, place or thing
He also made his children to pass through the fire in the valley of the son of Hinnom; and he practised augury, and used enchantments, and practised sorcery, and dealt with them that had familiar spirits, and with wizards: he wrought much evil in the sight of Jehovah, to provoke him to anger.
American Standard Version (1901). Public domain.