Where does “waning” come from?

waning (Middle English) comes from Old English wanung, from Old English wānian, from Proto-Germanic wainōną, from Proto-Indo-European wáy, from Proto-Indo-European uwáy — to see oneself.

Ancestry of “waning”, step by step

StepLanguageWordMeaning
1Old Englishwanungwaning; diminution
2Old Englishwānianto complain, lament; to bewail, lament
3Proto-Germanicwainōnąto cry, to lament, to grieve
4Proto-Indo-Europeanwáyoh!; ah!; woe!
5Proto-Indo-Europeanuwáyto see oneself

Words derived from “waning”

Every word from Proto-Indo-European uwáy →Every word from Proto-Indo-European wáy →Every word from Proto-Germanic wainōną →