The Italian word "guappo" derives from the Spanish word "guapo," meaning handsome or brave.

The word "guapo" in Spanish means handsome, brave, or bold. When Spanish culture and language mixed with southern Italy, especially Naples, the term was adopted as "guappo." This borrowing happened during periods when Spain had political and cultural influence over parts of Italy, including Naples. The meaning shifted slightly to focus more on a type of person known for boldness and style rather than just looks or bravery.