beinharður (Icelandic) comes from Icelandic harður, from Old Norse harðr, from Proto-Germanic harduz, from Proto-Indo-European kert-, from Proto-Turkic *keŕ- — to travel, tour.
beinharður (Icelandic): hard as a bone
Definitions
hard as a bone
Ancestry of “beinharður”, step by step
beinharður traces back through two separate lines of ancestry.