To remove a substance from the surface of a liquid

To take a portion of something for oneself

किसी चीज़ का एक भाग अपने लिए रखना

English Usage: The corrupt official would skim off money from the government funds.

Hindi Usage: भ्रष्ट अधिकारी सरकारी धन से एक भाग रख लेता था।