Rex
Rex comes directly from the Latin "rex," meaning "king." The name was a Roman title and surname. Rex was moderately popular in mid-century America, peaking at #170 in 1953. Rex (the actor Rex Harrison, 1908-1990, who won the Oscar for "My Fair Lady" (1964)) is the most famous bearer. The single syllable is direct, and the "R" opening is firm. The "x" ending gives it an edge. Rex is a male name of Latin origin that means "King". Brisk, regal, and a little vintage. The name sounds direct. Rexes tend to be confident. US peaked #170 in 1953. Now top 700. Well-known people named Rex include Rex Harrison (actor), Rex (Latin word), Rex (fictional, various). Common variations and related forms of Rex include Rexford (elaboration), Rex (used across English), Rexie (nickname).