Where does “søster” come from?
søster (Norwegian Nynorsk) comes 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.
søster (Norwegian Nynorsk): sister
Ancestry of “søster”, step by step
Words derived from “søster”