Railing

A railing is a barrier made of posts and bars, often found along stairs, balconies, or the edges of walkways, to prevent falls and provide support. People hold onto railings for balance and safety.

It comes from “rail,” which comes from Old French “reille,” meaning “bar” or “bolt,” from Latin “regula,” meaning “straight piece of wood” or “rule.” The suffix “-ing” turns it into a collective noun for a set of rails.