fi·at
noun/ˈfiːæt/, /ˈfiːət/
/ˈfiːɑːt/
[countable, uncountable] (formal)- an official order given by somebody in authority
（当权者的）法令，命令，谕 - Prices have been fixed by government fiat.
价格由政府法令确定。
Word Originlate Middle English: from Latin, ‘let it be done’, from fieri ‘be done or made’. - Prices have been fixed by government fiat.