Icelandic Radios app. Icelandic is an Indo-European language belonging to the North Germanic or Nordic branch of the Germanic languages. Historically, it was the westernmost of the Indo-European languages prior to the colonisation of the Americas. Icelandic, Faroese, Norn, and Norwegian formerly comprised West Nordic; Danish and Swedish comprised East Nordic. The Nordic languages are now divided into Insular Nordic and mainland Scandinavian languages. Norwegian is now grouped with Danish and Swedish because of its mutual intelligibility with those languages due to its heavy influence from them over the last millennium, particularly from Danish.