weepyoudaoicibaDictYouDict
weep: [OE] Weep goes back to prehistoric Germanic *wōpjan, which probably originated in imitation of the sound of wailing or lamentation. Most of its Germanic relatives have long since died out, but Icelandic still has ǽpa ‘cry out, scream’.
weep (v.)youdaoicibaDictYouDict
Old English wepan "shed tears, cry; bewail, mounr over; complain" (class VII strong verb; past tense weop, past participle wopen), from Proto-Germanic *wopjan (cognates: 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" (cognates: 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.