Where does “sisaristo” come from?
sisaristo (Finnish) comes from Finnish sisar, from Proto-Finnic sesar, from Proto-Balto-Slavic swésō, from Proto-Indo-European swésōr, from Proto-Indo-European su-h₁ésh₂-ōr, from Proto-Indo-European h₁ésh₂r̥ — blood.
sisaristo (Finnish): A sisterhood
Ancestry of “sisaristo”, step by step