A more thorough explanation:

fiaunt

Fiaunt is another way of spelling "fiat". It means an official order or decision given by someone in authority.

• The king issued a fiaunt that all taxes must be paid by the end of the month.
• The judge's fiaunt was that the defendant must pay a fine for their actions.

These examples show how a person in power can make a fiaunt to make a decision or give an order. In the first example, the king made a fiaunt to require people to pay their taxes. In the second example, the judge made a fiaunt to require the defendant to pay a fine.