The German rentenmark, also referred to as the "rentenmark," was the currency that was introduced in Germany in 1923 to combat hyperinflation. The rentenmark was defined as being worth one trillion old marks, which had lost almost all their value. The term "rentenmark" comes from the German word "rente," which means "annuity" or "income." Some synonyms for rentenmark include the "goldmark," which was the currency used before World War I in Germany. Other synonyms include the "reichsmark," which replaced the rentenmark in 1924, and the "papiermark," which was the paper currency that experienced hyperinflation before the rentenmark was introduced.