One of the mysteries of the English language finally explained.
1Having round or curved edges; that has been made round, convex, or curved by trimming off the angles.
2Of a number: approximated by rounding off; = "rounded".
Mid 19th century; earliest use found in Journal of the Asiatic Society of Bengal. From rounded + off, after to round off.
In this article we explore how to impress employers with a spot-on CV.