Where does “Sülver” come from?

Sülver (German Low German) comes from Middle Low German sülver, from Old Saxon siluvar, from Proto-Germanic silubrą — silver.

Sülver (German Low German): API n; silver

Definitions

Step	Language	Word	Meaning
1	Middle Low German	sülver	—
2	Old Saxon	siluvar	silver
3	Proto-Germanic	silubrą	silver

Sülver — Etymology, Origin & Word History | Etymology Explorer