French in origin, this term means to preserve which has been a traditional French method of keeping food in storage for longer periods of time.During a time when there was a lack of refrigeration, foods were preserved in jars under layers of fat or syrups as a means to store the contents for future use.rench in origin, this term means to preserve which has been a traditional French method of keeping food in storage for longer periods of time.
Wiktionary(0.00 / 0 votes)Rate this definition: fiat currency(Noun) Money that has indirect market value or is given legal tender status by government fiat.
â¢ FIAT (noun) The noun FIAT has 1 sense: 1. a legally binding command or decision entered on the court record (as if issued by a court or judge) Familiarity information: FIAT used as a noun is very rare.