One of the mysteries of the English language finally explained.
Of a person: that uses both hands; specifically able to use both hands equally well, ambidextrous. Also of a task: performed with both hands; (of a tool) used with both hands.
With or using either hand or both hands.
Early 17th century; earliest use found in Thomas Middleton (d. 1627), playwright. From both + handed.
In this article we explore how to impress employers with a spot-on CV.