To remove margarine or margarine coating from something, typically in food processing or cooking.
From de- (removal) + margarine + -ate (verb suffix). Margarine itself comes from French 'margarine,' from Greek 'margaros' (pearl), named for its lustrous appearance.
Industrial food scientists demargarinate baked goods when creating 'healthier' versions—removing that glossy coating also removes shelf life, which is why margarine was added in the first place.
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