Language and the euro and a 50 euro banknote is called ("penintariko"), derivatives of the words for ten, twenty and fifty. 10 lepta of a drachma were called ("dekara"), but since lepta of the drachma were out of circulation long before the euro, this word is now considered too old-fashioned and only used in old expressions and thus it is not used for the 10 eurocent coin. Nevertheless, all Greeks understand the word to stand for 10 cents of any currency and thus use it for non-euro currencies like the dime of the US dollar. The same is true for the 5-cent coin which
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