What is the origin of the idiom "cover for someone" and when to use it?

The idiom "cover for someone" likely originated from the concept of providing physical cover or protection, which gradually expanded to include the idea of assuming someone's responsibilities or offering support in their absence. The expression symbolizes the act of figuratively shielding or safeguarding someone, ensuring that their actions or absence are managed or concealed effectively. It is often used in work settings when colleagues or teammates provide support and take on tasks to ensure continuity when someone is absent or unable to fulfill their obligations.

What is the origin of the idiom "cover for somebody" and when to use it?

The phrase "cover for somebody" originated in the 19th century and referred to the act of taking over someone else's duties or responsibilities temporarily. It is often used in work or professional contexts, where someone may need to cover for a colleague who is on vacation, sick, or otherwise unavailable.