Where does “Suster” come from?
Suster (Saterland Frisian) comes from Old Frisian swester, from Proto-Germanic swestēr, from Proto-Indo-European swésōr, from Proto-Indo-European su-h₁ésh₂-ōr, from Proto-Indo-European h₁ésh₂r̥ — blood.
Suster (Saterland Frisian): sister
Ancestry of “Suster”, step by step