Cicerone is an old term for a guide, one who conducts visitors and sightseers to museums, galleries, etc., and explains matters of archaeological, antiquarian, historic or artistic interest. The word is presumably taken from Marcus Tullius Cicero, as a type of learning and eloquence. The New English Dictionary finds examples of the use earlier in English

English language

English is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...

 than Italian

Italian language

Italian is a Romance language spoken mainly in Europe: Italy, Switzerland, San Marino, Vatican City, by minorities in Malta, Monaco, Croatia, Slovenia, France, Libya, Eritrea, and Somalia, and by immigrant communities in the Americas and Australia...

, the earliest quotation being from Joseph Addison

Joseph Addison

Joseph Addison was an English essayist, poet, playwright and politician. He was a man of letters, eldest son of Lancelot Addison...

's Dialogue on Medals (published posthumously 1726). It appears that the word was first applied to learned antiquarians who show and explain to foreigners the antiquities and curiosities of the country (quotation of 1762 in the New English Dictionary).

An alternate use of the word is as it pertains to beer. The Cicerone(R) Certification Program, run by Ray Daniels, offers professional credentials for those who sell and serve beer. The second level certification offered is Certified Cicerone(R).