One of the mysteries of the English language finally explained.
A migratory blue butterfly of Eurasian meadows.
Cyaniris semiargus, family Lycaenidae
Late 17th century (denoting a deep blue colour): apparently from the name of Cardinal Mazarin, Jules, or of the Duchesse de Mazarin (died 1699), though the connection is unknown.
In this article we explore how to impress employers with a spot-on CV.