The Collaborative International Dictionary
Mulct \Mulct\, v. t. [imp. & p. p. Mulcted; p. pr. & vb. n. Mulcting.] [L. mulctare, multare.]
To punish for an offense or misdemeanor by imposing a fine or forfeiture, esp. a pecuniary fine; to fine.
Hence, to deprive of; to withhold by way of punishment or discipline. [Obs.]
Wiktionary
n. The imposition of a fine or penalty. vb. (present participle of mulct English)
Usage examples of "mulcting".
Moreover, for greater surety We extend these letters deputing this authority to cover all the aforesaid provinces, townships, dioceses, districts, territories, persons, and crimes newly rehearsed, and We grant permission to the aforesaid Inquisitors, to one separately or to both, as also to Our dear son John Gremper, priest of the diocese of Constance, Master of Arts, their notary, or to any other public notary, who shall be by them, or by one of them, temporarily delegated to those provinces, townships, dioceses, districts, and aforesaid territories, to proceed, according to the regulations of the Inquisition, against any persons of whatsoever rank and high estate, correcting, mulcting, imprisoning, punishing, as their crimes merit, those whom they have found guilty, the penalty being adapted to the offence.
Still, he's an honest sort, so let's say some wily fabricator put one over on him and your priest, possibly with this so-called document, perhaps mulcting Ascher of a goodly sum in the process.