defraud (someone) out of (something)
To obtain something from someone by trickery or deception. I can't believe you lied to all of these people and defrauded them out of their hard-earned money! How could he defraud that sweet old lady out of her diamond necklace?
defraud someone out of something
to cheat someone out of something. The crooked contractor defrauded the town out of a fortune. The clerk defrauded the employer out of a great deal of money.