Of Mars; warlike
A modern American creation likely blending the popular prefix 'La-' with the Latin name Marius. Marius is an ancient Roman family name derived from Mars, the Roman god of war.
Less common today
Lamarius isn't in the latest US Top 1000. It last peaked at #5,932 in 2009.
College football player
US births per 5-year period, 1990βpresent (SSA data).