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.
fiat. n. 1. official sanction; authoritative permission. 2. an arbitrary order or decree. 3. any command, decision, or act of will that brings something about. Fiat Lancia Car Club. 2  Fiat Lancia Unlimited in Detroit. 3  fiat money. 4  fiat money. 5  fiat money. 6  Fiat Owners Club New Zealand. 7  Fiat Powertrain Technologies. 8  Fiat prout. 9  Fiat S.p.A.