G5573 ψευδολόγος (pseudológos)

KJV renderings: speaking lies
Strong's definition: mendacious, i.e. promulgating erroneous Christian doctrine
Derivation: from G5571 (ψευδής) and G3004 (λέγω);

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