fiat

[ fee-aht, -at; fahy-uht, -at ]
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noun
  1. an authoritative decree, sanction, or order: a royal fiat.

  2. a fixed form of words containing the word fiat, by which a person in authority gives sanction, or authorization.

  1. an arbitrary decree or pronouncement, especially by a person or group of persons having absolute authority to enforce it: The king ruled by fiat.

Origin of fiat

1
First recorded in 1625–35; from Latin: “let it be done,” 3rd-person singular present subjunctive of fierī “to become”

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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

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British Dictionary definitions for fiat

fiat

/ (ˈfaɪət, -æt) /


noun
  1. official sanction; authoritative permission

  2. an arbitrary order or decree

  1. mainly literary any command, decision, or act of will that brings something about

Origin of fiat

1
C17: from Latin, literally: let it be done, from fierī to become

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