Where does “fǫðursystir” come from?
fǫðursystir (Old Norse) 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.
fǫðursystir (Old Norse): paternal aunt
Ancestry of “fǫðursystir”, step by step
Words derived from “fǫðursystir”