To take something from by fraud; swindle.
Defrauded the immigrants by selling them worthless land deeds.
To take away or hold back property, rights, etc. from by fraud; cheat.
Defraud is defined as to use illegal means or deception to trick someone, usually to obtain money.
When you lie and say that you are the tax collector in order to trick people into giving you money, this is an example of when you defraud people.
Origin of defraud
Middle English defrauden from Old French defrauder from Latin dēfraudāre dē- de- fraudāre to cheat (from fraus fraud- fraud)