Definition of the word roll in

The origin of the phrase "roll in" can be traced back to the 1800s, during which time it was commonly used to describe the arrival of a group of people or objects in a particular location. At this time, the word "roll" had a different meaning than it does today. Instead of referring to something being shaped into a tube or being pushed along a surface, "roll" was frequently used as a verb meaning "to move heavily or slowly." When combined with "in," which in this context meant "into" or "towards," the phrase "roll in" came to describe the slow, deliberate arrival of a group of individuals or objects. Over time, the meaning of "roll" has evolved to take on its more modern usage, while "roll in" has remained a commonly used expression in both written and spoken English. Today, "roll in" is often used to describe the arrival of guests at a gathering, the arrival of players onto a playing field, or the arrival of products onto a store's shelves, among other things.