One of the mysteries of the English language finally explained.
Originally and frequently in Spanish-speaking contexts: ‘Who knows?’, ‘who can tell?’.
Mid 19th century; earliest use found in Robert Fitzroy (1805–1865), hydrographer and meteorologist. From Spanish quién sabe who knows from quién (interrogative pronoun) who + sabe, third person singular present indicative of saber to know.
quien sabe/kɪˌɛn ˈsɑːbeɪ/
In this article we explore how to impress employers with a spot-on CV.