wergeld n.

late 15c., "characteristic of a man; marked by manly force," from Old French viril (14c.) and directly from Latin virilis "of a man, manly, worthy of a man," from vir "a man, a hero," from PIE root *wi-ro- "man." Virile member for "penis" is recorded from 1540s.

royal tax in medieval England, c. 1600, as a historical term, from Medieval Latin geldum, from Old English gield "payment, tax, tribute, compensation," from Proto-Germanic *geldam "payment" (source also of Middle High German gelt "payment, contribution," German geld "money," Old Norse gjald "payment," Gothic gild "tribute, tax"), from PIE root *gheldh- "to pay" (see yield (v.)).

*wī-ro-, Proto-Indo-European root meaning "man."

It forms all or part of: curia; Fergus; triumvir; triumvirate; Weltanschauung; Weltschmerz; werewolf; wergeld; world; virago; virile; virility; virtue; virtuosity; virtuoso; virtuous.

It is the hypothetical source of/evidence for its existence is provided by: Sanskrit virah, Avestan vira-, Latin vir, Lithuanian vyras, Old Irish fer, Welsh gwr, Gothic wair, Old English wer "a man."