Wulfstan
Wulfstan’s unique words of Scandinavian origin are: þræl ‘slave, servant’ (Old Norse þræll, Old English þēow), bōnda ‘husband, peasant’ (Old Norse bóndi, Old English ceorl), eorl ‘nobleman of highest rank’ (Old Norse jarl, Old English ealdormann). Those words are related to the topic of social classes.  Another important word is lagu ‘divine law’ (Old Norse lag, Old English ǣw).