BTW, shouldn’t “widower” be the person who died and the survivor be called “widowee”?
“Etymology Middle English widewer, alteration of wedow widow, widower, from Old English wuduwa widower; akin to Old English wuduwe widow”
It's one of these more universal words of Indo-European origin: https://ids.clld.org/parameters/2-770#2/14.4/149.7