Genésio / Genesius / Genès

The name Genésio is the Portuguese form of the Late Greek name Genesios (Γενέσιος), which means 'of birth' or 'well-born'. It is derived from the Greek word 'genesis' (γένεσις), meaning 'birth' or 'origin'. The name gained popularity through Saint Genesius, a Roman actor who, according to legend, was martyred in the 3rd or 4th century after converting to Christianity while mocking the sacrament of baptism on stage.

The veneration of Saint Genesius spread throughout Europe, particularly in Romance-speaking countries. In Portugal and Brazil, Genésio became a traditional given name, often associated with the saint. Its usage reflects a historical connection to Christian hagiography and the adoption of names with classical roots.