Name of Mexico triumphantly with his Army of the Three Guarantees (religion, independence, and unity). This was followed by the birth of the short-lived First Mexican Empire that used the "Mexico" name according to the convention used previously by Roman Empire () and the Holy Roman Empire, whereby the capital gives rise to the name of the Empire. This was the first recorded use of "Mexico" as a country title. After the Empire fell and the Republic was established in 1824, a Federation name form was adopted; which was, at most times, more "de jure" than "de facto". The Mexican name stuck, leading
Name of Argentina "equivalent and valid" denominations. Then on October 8, 1860, President Santiago Derqui decreed the official name to be República Argentina. In common speech, the country is referred to as "la Argentina" (the Argentine) in Spanish, bypassing the noun in any of the above expressions ("the Argentine [land]", "the Argentine [Republic]", etc.). Name of Argentina The name of Argentina (a Spanish adjective meaning "silvery"), traditionally called the Argentine in English, is ultimately derived from the Latin "argentum" "silver" and the feminine of the adjectival suffix -īnus, the Latin "argentum" has its origin from the ancient Greek-Hellenic word "argyro(s)", άργυρο(ς) meaning silver.