fid-, fidel-
(Latin: believe, belief; trust, faith, true)
Esto semper fidelis.
Be ever faithful.
Estote fideles.
Be ye faithful.
Exto fidelis.
Be faithful.
faith
faithful
faithfully
faithfulness
faithless
faithlessness
fealty
The obligation of fidelity on the part of a feudal tenant or vassal to his lord.
fiance, fiancé
1. A man to whom a woman is engaged to be married.
2. Etymology: from French, past participle of fiancer, "to betroth"; from Old French fiancier, from fiancé, "trust"; from fier, "to trust"; from Latin fidere, "to trust".
Fide et literis.
By faith and by letters.
Motto of St. Paul's School, London, U.K.
fideicide
A breaker of one’s word or trust; a faith-destroyer.
fideism
A reliance, in a search for religious truth, on faith alone.
Fidelitas, veritas, integritas.
Fidelity, truth, integrity.
Motto of Salmon P. Chase College of Law of Northtern Kentucky University, Covington, Kentucky, USA.
Cross references of word families that are related directly, or indirectly, to: "faith, trust; faithful, trusting; believe, belief":
cred-;
dox-.