fiat
NounWordNet 3.0
Webster's Dictionary (GCIDE)
Fiat \Fi"at\, n. [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. [1913 Webster]
His fiat laid the corner stone.— Willis.[1913 Webster]
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. [1913 Webster]
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. [1913 Webster]