law of deceitglossary / LAW OF DECEIT law of deceit. Hist. The body of 19th-century common-law torts that developed into the modern laws of trademark, securities fraud, deceptive trade practices, and unfair competition. 词条贡献者 译员蓉婧,欧洲知名商学院国际金融专业,专注翻译各种与美国证券法律有关的法律文件。