Where does “syster” come from?

syster (Vilamovian) comes from Middle Low German syster, from Old Saxon swestar, from Proto-Germanic swestēr, from Proto-Indo-European swésōr, from Proto-Indo-European su-h₁ésh₂-ōr, from Proto-Indo-European h₁ésh₂r̥ — blood.

syster (Vilamovian): sister

Definitions

sister

Ancestry of “syster”, step by step

Step	Language	Word	Meaning
1	Middle Low German	syster	—
2	Old Saxon	swestar	sister
3	Proto-Germanic	swestēr	sister
4	Proto-Indo-European	swésōr	sister
5	Proto-Indo-European	su-h₁ésh₂-ōr	—
6	Proto-Indo-European	h₁ésh₂r̥	blood

Every word from Proto-Indo-European h₁ésh₂r̥ →

syster — Etymology, Origin & Word History | Etymology Explorer