Where does “kaksoissisar” come from?

kaksoissisar (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.

kaksoissisar (Finnish): twin sister the other sister of a pair of twins

Definitions

  1. twin sister the other sister of a pair of twins

Ancestry of “kaksoissisar”, step by step

StepLanguageWordMeaning
1Finnishsisarsister
2Proto-Finnicsesarsister
3Proto-Balto-Slavicswésōsister
4Proto-Indo-Europeanswésōrsister
5Proto-Indo-Europeansu-h₁ésh₂-ōr
6Proto-Indo-Europeanh₁ésh₂r̥blood
Every word from Proto-Indo-European h₁ésh₂r̥