Where does “dwinen” come from?

dwinen (Middle English) comes from Old English dwīnan, from Proto-Germanic dwīnaną, from Proto-Indo-European dgʷhey- — to disappear, die.

Ancestry of “dwinen”, step by step

StepLanguageWordMeaning
1Old Englishdwīnanto waste away
2Proto-Germanicdwīnanąto dwindle, to disappear
3Proto-Indo-Europeandgʷhey-to disappear, die
Every word from Proto-Indo-European dgʷhey- →Every word from Proto-Germanic dwīnaną →Every word from Old English dwīnan →