Where does “gammelfaster” come from?
gammelfaster (Swedish) comes from Swedish faster, from Old Swedish faþur systir, from Old Norse fǫðursystir, from Old Norse systir, from Proto-Norse ᛊᚹᛖᛊᛏᚨᚱ, from Proto-Germanic swestēr, from Proto-Indo-European swésōr, from Proto-Indo-European su-h₁ésh₂-ōr — blood.
gammelfaster (Swedish): parents' paternal aunt
Ancestry of “gammelfaster”, step by step