storebror (Norwegian Nynorsk) comes from Norwegian Nynorsk stør, from Old Norse stórr, from Proto-Germanic stōraz, from Proto-Indo-European steh₂-ro-, from Proto-Indo-European steh₂- — to stand.
storebror (Norwegian Nynorsk): a sibling's older brother
Definitions
a sibling's older brother
Ancestry of “storebror”, step by step
storebror traces back through two separate lines of ancestry.