This popular Latin phrase or expression is so familiar that it has become a common expression of our own language. It has survived the passing of time, the phrase is one of our 'Latin legacies'. Additional examples of the meaning and use of the term are as follows:
"My Roman coin is a Bona fide antique."
"The document is authorised by
a Bona fide signature."
"The meal was cooked by a
an Bona fide French chef."