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 money has been defined variously as: 1  Any money declared by a government to be legal tender. 2  State-issued money which is neither convertible by law to any other thing, nor fixed in value in terms of any objective standard.