Where does “sisarenlapsi” come from?

sisarenlapsi (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.

sisarenlapsi (Finnish): sororal niece or nephew

Definitions

  1. sororal niece or nephew

Ancestry of “sisarenlapsi”, step by step

sisarenlapsi traces back through two separate lines of ancestry.

via Finnish sisar

StepLanguageWordMeaning
1Finnishsisarsister
2Proto-Finnicsesarsister
3Proto-Balto-Slavicswésōsister
4Proto-Indo-Europeanswésōrsister
5Proto-Indo-Europeansu-h₁ésh₂-ōr—
6Proto-Indo-Europeanh₁ésh₂r̥blood

via Finnish lapsi

StepLanguageWordMeaning
1Finnishlapsichild
2Proto-Finniclapcichild
3Proto-Uraliclëpćecradle
Every word from Proto-Indo-European h₁ésh₂r̥ →Every word from Proto-Indo-European su-h₁ésh₂-ōr →Every word from Proto-Indo-European swésōr →