Where does “halvsyster” come from?
halvsyster (Swedish) comes from Swedish syster, from Old Swedish systir, from Old Norse systir, from Proto-Norse ᛊᚹᛖᛊᛏᚨᚱ, from Proto-Germanic swestēr, from Proto-Indo-European swésōr, from Proto-Indo-European su-h₁ésh₂-ōr, from Proto-Indo-European h₁ésh₂r̥ — blood.
halvsyster (Swedish): a half sister
Ancestry of “halvsyster”, step by step