One of the mysteries of the English language finally explained.
Wearing or having a black coat; specifically designating a clerical or professional person as distinguished from one engaged in an industrial or commercial occupation; (hence) of or composed of persons engaged in such occupations.
Early 17th century; earliest use found in Richard Surflet (fl. 1600–1616), translator.
In this article we explore how to impress employers with a spot-on CV.