Pure
Catarino is the rare masculine form of the name Catarina, which is the Portuguese and Spanish variant of Katherine. It ultimately derives from the Greek name Aikaterine, which is widely associated with the word katharos, meaning pure.
Less common today
Catarino isn't in the latest US Top 1000. It last peaked at #3,182 in 1990.
Mexican journalist and revolutionary leader
Mexican singer and songwriter of Los Rancheritos del Topo Chico
US births per 5-year period, 1990βpresent (SSA data).