G4106 πλάνη (plánē)

KJV renderings: deceit, to deceive, delusion, error
Strong's definition: objectively, fraudulence; subjectively, a straying from orthodoxy or piety
Derivation: feminine of G4108 (πλάνος) (as abstractly);

From James Strong's public-domain dictionaries (G), JSON edition by OpenScriptures (CC-BY-SA). Every dotted-underline word in the text links here.