Old Norse Alternative forms -skr Etymology From Proto-Germanic *-iskaz, from Proto-Indo-European *-iskos. Whence also English -ish. Note also the shorter form -skr. Suffix -iskr forms adjectives Derived terms Old Norse terms suffixed with -iskr Old Norse terms suffixed with -skr Descendants Icelandic: -skur, -iskurFaroese: -skur, -iskurNorwegian Nynorsk: -sk, -iskSwedish: -sk, -iskDanish: -sk, -iskNorwegian Bokmål: -sk, -isk Wikiwand - on Seamless Wikipedia browsing. On steroids.