Where does “dwienen” come from?

dwienen (Low German) comes from German dwînen, from Old Saxon dwīnan, from Proto-Germanic dwīnaną, from Proto-Indo-European dgʷhey- — to disappear, die.

Ancestry of “dwienen”, step by step

Step	Language	Word	Meaning
1	German	dwînen	—
2	Old Saxon	dwīnan	to dwindle
3	Proto-Germanic	dwīnaną	to dwindle, to disappear
4	Proto-Indo-European	dgʷhey-	to disappear, die

Words derived from “dwienen”

verdwienen

Every word from Proto-Indo-European dgʷhey- →Every word from Proto-Germanic dwīnaną →Every word from Old Saxon dwīnan →