Weep
Old English wēpan (verb), of Germanic origin, probably imitative.
wiktionary
From Middle English wepen, from Old English wēpan(“to weep, complain, bewail, mourn over, deplore”), from Proto-West Germanic *wōpijan, from Proto-Germanic *wōpijaną(“to weep”), from Proto-Indo-European *weh₂b-(“to call, cry, complain”).
Cognate with Scots wepe, weip(“to weep”), Saterland Frisian wapia(“to cry, complain”), Icelandic æpa(“to yell, shout”).
Imitative of its cry.
etymonline
weep (v.)
Old English wepan "shed tears, cry; bewail, mourn over; complain" (class VII strong verb; past tense weop, past participle wopen), from Proto-Germanic *wopjan (source also of Old Norse op, Old High German wuof "shout, shouting, crying," Old Saxon wopian, Gothic wopjan "to shout, cry out, weep"), from PIE *wab- "to cry, scream" (source also of Latin vapulare "to be flogged;" Old Church Slavonic vupiti "to call," vypu "gull"). Of water naturally forming on stones, walls, etc., from c. 1400. Related: Wept; weeping; weeper.
