FaithfEnglish Simply from the English word faith, ultimately from Latin fidere "to trust". This was one of the virtue names adopted by the Puritans in the 17th century.
FefSpanish Means "faith" in Spanish, derived from Latin fides.
FidelmSpanish From the Late Latin name Fidelis meaning "faithful", a derivative of fides "faith". A famous bearer was the revolutionary leader and Cuban president Fidel Castro (1926-2016).
Fidom & fPet From Latin fidus meaning "faithful". This a stereotypical name for dogs.
FrumafYiddish From Yiddish פֿרום (frum) meaning "pious". This is the name of a character (appearing as a ghost) in the musical Fiddler on the Roof (1964).
Imanf & mArabic, Persian, Urdu, Indonesian, Malay Means "faith" in Arabic, derived from أمن (ʾamuna) meaning "to be faithful". It is typically feminine in Arabic and masculine in Persian.
Jalal ad-DinmArabic Means "greatness of the faith" from Arabic جلال (jalāl) meaning "greatness, splendour" and دين (dīn) meaning "religion, faith". Jalal ad-Din Muhammad Rumi, commonly called just Rumi, was a 13th-century Persian poet.
MuminmArabic Means "believer" in Arabic, ultimately related to أمن (ʾamuna) meaning "to be faithful".
PistisfGreek Mythology Means "trust, faith" in Greek. In Greek mythology Pistis was the personification of trust.
Tukulti-NinurtamAncient Assyrian Means "my trust is in Ninurta", from Akkadian tukultu meaning "trust, faith" and the god's name Ninurta. This was the name of a 13th-century BC king of the Assyrian Empire.