Language and the euro it is actually written on the euro notes in Greek as . Also, the spelling (resulting in a plural ) on the notes could have confused other Europeans, who might read it as a string of Latin letters: "eypo". A plural form "evra", as if from a regular declinable neuter noun in "-o", is sometimes used in a jocular way. For the cent, the terms used in Greece are , plural ("leptó", plural "leptá"), a name used for small denominations of various ancient and modern Greek currencies, including the drachma (which the euro replaced). The word means 'minute' (literally "thin"),
Reserve currency before the beginning of the worldwide credit crunch related recession and Eurozone crisis, which harmed the euro and slowed its adoption. Since 2009, the reserve currency use of the euro has continued to drop, down to 23.9 percent in 2013. The Dutch guilder was the "de facto" reserve currency in Europe in 17th and 18th centuries. The United Kingdom's pound sterling was the primary reserve currency of much of the world in the 19th century and first half of the 20th century. The emergence of the USA as an economic superpower, and the establishment of the U.S. Federal Reserve System