Felicity
[fəˈlɪsɪti]Meaning
from the English word felicity, "happiness", ultimately from Latin felicitas, "good luck"
Background Story
Felicity comes from the English word felicity, meaning happiness, which derives from the Latin felicitas, meaning good luck. It was one of the virtue names adopted by the Puritans around the 17th century, and it can sometimes be used as an English form of the Latin name Felicitas. The name jumped in popularity in the United States after the premiere of the television series Felicity in 1998, and it is more common in the United Kingdom.

Related Names
Feliz
Spanish for "happy"; recorded as a rare masculine given name in Spanish.
Fortuna
Means "luck" in Latin
Angelica
From Latin angelicus, "angelic", from Greek angelos, "messenger"
Arabella
Medieval scottish name, probably a variant of annabel
Clarissa
Latinate form of Clarice
Felix
From a Roman cognomen meaning "lucky, successful" in Latin
Fidella
No documented meaning in the sources checked
Flavia
Meaning flourishing or prosperous
Gloria
Means "glory", from the Latin gloria
Karolina
Derived from the name Charles, meaning 'free man'