The term 'Rove for Plunder' is a phrase used to describe the act of marauding, which is defined as the act of attacking and plundering. Marauding is typically done by a group of people, often with the intent of stealing or destroying property. The term 'Rove for Plunder' is derived from the Old English word 'rafe, ' which means to rob or plunder. This phrase is often used to describe the actions of pirates, raiders, and other criminals who seek to gain wealth or resources through violent means.