Sentence:  A withdrawal from a wager of law was an admission of the point as to which the <WSD>law</WSD> was waged; the defaulter also incurred a fine (i, 297). 
Meaning of the word marked with <WSD> tags:  An oath sworn before a court, especially disclaiming a debt. (wager of law)", "(wage one's law)", "(perform one's law)", "(lose one's law)".