The magician hypnotized an audience member and made him walk like a chicken during the show.

hypnotized 是动词 hypnotize 的过去式，hypnotize 由词根 hypno-（来自希腊语，表示"睡眠"）和动词后缀 -tize（表示"使...化"）组成，字面意思是"使进入睡眠状态"，引申为"催眠"。