Rex
[rɛks]Meaning
Latin rex, meaning "king"
Background Story
Rex comes from the Latin word rex, meaning "king". It has been used as a given name since the 19th century, and is recorded in Ancient Roman, Astronomy, Portuguese and Spanish use. Its feminine forms are Regina and Regena.

Related Names
Rexy
King or ruler, derived from the Latin word 'rex'.
рекс
Dux
Latin for "leader" or "general"; later also duke and its variant forms.
Radscha
Raj
Means "empire, royalty", from Sanskrit राज्य (rājya)
Reio
Estonian variant of Reigo, itself shortened from Gregor (Gregory)
Rexi
Recorded as a given name in modern English, used for both girls and boys
Rey
Short form of Reynaldo; also the Spanish word for "king"
Rufio
A name derived from Latin meaning 'red-haired'
Aloysius
Latinized form of Aloys, an old Occitan form of Louis