Where does “biwepen” come from?

biwepen (Middle English) comes from Old English bewēpan, from Proto-West Germanic biwōpijan — to weep over.

Ancestry of “biwepen”, step by step

Step	Language	Word	Meaning
1	Old English	bewēpan	to weep over, mourn, bewail
2	Proto-West Germanic	biwōpijan	to weep over

biwepen — Etymology, Origin & Word History | Etymology Explorer