Brother
Derived from the Greek word 'adelphos', meaning brother. It shares the same linguistic root as the city of Philadelphia, the 'City of Brotherly Love'. While rare in the United States, it has historical use in Spanish and Italian speaking cultures.
Less common today
Adelfo isn't in the latest US Top 1000. It last peaked at #6,687 in 1993.
Peruvian footballer and manager known as 'El Bólido'
Mexican lawyer and indigenous rights activist
US births per 5-year period, 1990–present (SSA data).
