Fi"at (?), n. [L., let it be done, 3d pers. sing., subj. pres., fr. fieri, used as pass. of facere to make. Cf. Be.]


An authoritative command or order to do something; an effectual decree.

His fiat laid the corner stone. Willis.

2. Eng.Law (a)

A warrant of a judge for certain processes.


An authority for certain proceedings given by the Lord Chancellor's signature.

Fiat money, irredeemable paper currency, not resting on a specie basis, but deriving its purchasing power from the declaratory fiat of the government issuing it.


© Webster 1913.