Invented name, possibly meaning bright or shining
Kentarius is a modern American invention, likely created by combining the name Kent with the popular suffix -arius. While it does not have a singular ancient etymology, the prefix Kent is often associated with the English county or the Welsh word for 'bright' or 'white', while the suffix lends a rhythmic, Latinate flair.
Less common today
Kentarius isn't in the latest US Top 1000. It last peaked at #6,404 in 1996.
US births per 5-year period, 1990βpresent (SSA data).