Where does “yskas” come from?

yskas (Afrikaans) comes from Dutch ijskast, from Dutch ĳs, from Middle Dutch ĳs, from Old Dutch īs, from Proto-West Germanic īs, from Proto-Germanic īsą, from Proto-Indo-European h₁eyH- — ice, frost.

yskas (Afrikaans): refrigerator

Definitions

refrigerator

Ancestry of “yskas”, step by step

Step	Language	Word	Meaning
1	Dutch	ijskast	refrigerator
2	Dutch	ĳs	ice frozen liquid, notably water
3	Middle Dutch	ĳs	ice
4	Old Dutch	īs	—
5	Proto-West Germanic	īs	ice
6	Proto-Germanic	īsą	ice
7	Proto-Indo-European	h₁eyH-	ice, frost

Every word from Proto-Indo-European h₁eyH- →Every word from Proto-Germanic īsą →Every word from Proto-West Germanic īs →