Gioconda is the Italian word for "joyful" or "cheerful" — the same root as the Latin iucundus. La Gioconda is the Italian name for Leonardo da Vinci's Mona Lisa (1503-1506) — properly known as Ritratto di Monna Lisa del Giocondo after the sitter's married name.
Gioconda is rare but iconic.
Gioconda reduces to four — the number of Italian joy.