He was found guilty of obtaining money by deception.

deception 是名词，来自动词 deceive（欺骗）。deceive 由前缀 de-（表示“离开、偏离”）和词根 -ceive（来自拉丁语 capere，意思是“拿、取”）组成，字面意思是“拿走、骗取”。deception 指“欺骗行为”或“骗术”。