"Of (the) faith" is an English equivalent of the Latin phrase De fide.
Specifically, the preposition de is "about, from, of". The feminine noun in the ablative singular case, fide, means "faith". The pronunciation will be "dey FEE-dey" according to the liturgical Latin of the Church.
Bona fide is a Latin phrase, meaning literally "in good faith." Bona is the feminine version of "bonus," originally a Latin word meaning "good" and now an English word. "Fide" is from Latin, meaning "faith." The phrase should be italicized, since it is a phrase in a language other than English. A bona fide offer is one made in good faith, authentic, sincere, honest, legitimate.
The phrase 'bona fide' traces its original use back to ancient Italy of the ancient Romancivilization. Specifically, it comes into the English language by way of the ancient, classical Latin. The phrase means 'in good faith'. In the word-by-word translation, the adjective 'bona' means 'good'. The noun 'fide' means 'faith'.
in fide constans = always loyal
The phrase 'per semper fide' means By faith forever. In the word-by-word translation, the preposition 'per' means 'by, through'. The adverb 'semper' means 'always, at all times, on each occasion'. The noun 'fide' means 'faith'.
Amore et fide.
By faith and works is the English equivalent of 'fide et labore'. In the word by word translation, the noun 'fide' means 'faith'. The conjunction 'et' means 'and'. The noun 'labore' means 'works'.
By courage and faith is the English equivalent of 'Animo et fide'. In the word by word translation, the noun 'animo' means 'by courage'. The conjunction 'et' means 'and'. The noun 'fide' means 'by faith'.
Bona fide is a Latin phrase meaning "in good faith." In Tnglish, we use bona fied as an adjective meaning real or genuine.
Bona fide literally means "in good faith" in Latin. When we use this phrase in English, it usually means "genuine".
The words keep the faith in the Latin language are said as permanerent in fide. In the Italian language these words are mantenere la fede.
fide in Latin means faith--- as in Bona Fide (in good faith) Confide (discuss with faith/trust), Fidelity (faithful devotion to on another).
Fides is the Latin word for faith, fide would be the ablative case, meaning "by faith"