currency name doe anybody etymology follow currency name rial irun oman north yeman riyal saudus arabium quatar riel cambodium real brazil maybe similar name begin rus re end end l possible those name same ie origin originally refer kingdom e t c cf regal russian rubel rupee indium e t c fact strange currency name same origin country far away each brazil cambodium currency name seem follow national rule cf name dollar almost country originally german thaler supposedly spread under influence usd many variation word crown icelandic kr ona danish krone estonian kroon czechish korun e t c dinar various arabic country thank veturlidus oskarsson icelandic language institute reykjavmk iceland email veturosk ismal hus 