Where does “systursonur” come from?

systursonur (Icelandic) comes from Icelandic systir, from Old Norse systir, from Proto-Norse ᛊᚹᛖᛊᛏᚨᚱ, from Proto-Germanic swestēr, from Proto-Indo-European swésōr, from Proto-Indo-European su-h₁ésh₂-ōr, from Proto-Indo-European h₁ésh₂r̥ — blood.

systursonur (Icelandic): sororal nephew, sister’s son

Definitions

  1. sororal nephew, sister’s son

Ancestry of “systursonur”, step by step

systursonur traces back through two separate lines of ancestry.

via Icelandic systir

StepLanguageWordMeaning
1Icelandicsystira sister
2Old Norsesystirsister
3Proto-Norseᛊᚹᛖᛊᛏᚨᚱsister
4Proto-Germanicswestērsister
5Proto-Indo-Europeanswésōrsister
6Proto-Indo-Europeansu-h₁ésh₂-ōr—
7Proto-Indo-Europeanh₁ésh₂r̥blood

via Icelandic sonur

StepLanguageWordMeaning
1Icelandicsonurson
2Old Norsesonrson
3Proto-Germanicsunuzson
4Proto-Indo-European*suhnús—
Every word from Proto-Indo-European h₁ésh₂r̥ →Every word from Proto-Indo-European su-h₁ésh₂-ōr →Every word from Proto-Indo-European swésōr →