Rex
[rɛks]Meaning
From Latin rex, meaning "king".
Background Story
Rex comes from the Latin word for king. It has been used as a given name since the 19th century, and appears in Ancient Roman, astronomy, Portuguese and Spanish use.

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
An Estonian variant of Reigo, 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