So called from the Latin, cicer (a wart or vetch). Plutarch says “a flat excrescence on the tip of his nose gave him this name.” His real name was (Tullius) Tully.
La Bouche de Ciceron. Philippe Pot, prime minister of Louis XI. (1428-1494.) The Cicero of France. Jean Baptiste Massillon (1663-1742.)
The Cicero of Germany. Johann III., elector of Brandenburg. (1455-1499.) The Cicero of the British Senate. George Canning (1770-1827.)
The British Cicero. William Pitt, Earl of Chatham (1708-1778.) The Christian Cicero. Lucius Coelius Lactantius, a Christian father, who died 330. The German Cicero. Johann Sturm, printer and scholar. (1507-1589.)
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894