Where does “hálfsystir” come from?

hálfsystir (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.

hálfsystir (Icelandic): half sister

Definitions

half sister

Ancestry of “hálfsystir”, step by step

Step	Language	Word	Meaning
1	Icelandic	systir	a sister
2	Old Norse	systir	sister
3	Proto-Norse	ᛊᚹᛖᛊᛏᚨᚱ	sister
4	Proto-Germanic	swestēr	sister
5	Proto-Indo-European	swésōr	sister
6	Proto-Indo-European	su-h₁ésh₂-ōr	—
7	Proto-Indo-European	h₁ésh₂r̥	blood

Every word from Proto-Indo-European h₁ésh₂r̥ →

hálfsystir — Etymology, Origin & Word History | Etymology Explorer