fiat Hear it!

fiat definition

fiat (fē′ät, -at, -ət; fī′at′, -ət)

noun

  1. an order issued by legal authority, usually beginning with fiat (let it be done); decree
  2. a sanction; authorization
  3. any arbitrary order

Etymology: L, 3d pers. sing., pres. subj., of fieri, to become, come into existence < IE base *bheu- > be

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