English word ideology comes from French -logie (-logy.), French idéo- (Ideo-.)

Detailed word origin of ideology

Dictionary entry	Language	Definition
-logie	French (fra)	-logy.
idéo-	French (fra)	Ideo-.
idéologie	French (fra)	Ideology.
ideology	English (eng)	Doctrine, philosophy, body of beliefs or principles belonging to an individual or group.. The study of the origin and nature of ideas.