1: The price of a man’s head; a compensation paid of a man killed, partly to the king for the loss of a subject, partly to the lord of a vassal, and partly to the next of kin. It was paid by the murderer.
Also written weregeld, weregelt.
Wer is apparently a man, gild is the price paid.
Wer also explains the part of werewolf, or man + wolf.