A modern blend of the prefix Ke- and Anthony
Keanthony is a contemporary American invention, likely created by combining the popular prefix 'Ke-' with the classic name Anthony. Anthony itself is derived from the Roman family name Antonius, which is of uncertain Etruscan origin but often associated with the Greek word for 'priceless' or 'flourishing'.
US births per 5-year period, 1990–present (SSA data).