Definify.com
Webster 1913 Edition
Fiat
Fi′at
,Noun.
[L., let it be done, 3d pers. sing., subj. pres., fr.
fieri
, used as pass. of facere
to make. Cf. Be
.] 1.
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.
(b)
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.