What is the origin of the idiom "make common cause" and when to use it?

The idiom "make common cause" originated from the Middle English period and has its roots in the Old French word "cause," meaning reason or motive. The expression evolved over time to encompass the idea of joining forces or uniting for a shared purpose. It gained popularity in the 17th and 18th centuries, particularly during political movements and revolutions when people would come together to pursue common goals and fight for their rights.