Such a suffix based on the father's name is called a patronymic, and is not just Icelandic, but seen throughout the world, mostly Europe. https://en.wikipedia.

Such a suffix based on the father's name is called a patronymic, and is not just Icelandic, but seen throughout the world, mostly Europe. https://en.wikipedia.org/wiki/Patronymic https://en.wikipedia.org/wiki/Patronymic In Russia and other Slavic nations, the -ich patronymic is used: >> a man named Ivan with a father named Nikolay would be known as Ivan Nikolayevich or "Ivan, son of Nikolay"