Princess or lucky
Sadi is a name with dual roots, often used as a diminutive of Sarah meaning 'princess' or derived from the Arabic name Sa'id meaning 'lucky' or 'fortunate'. While rare in the United States, it offers a modern, streamlined alternative to the more common Sadie.
About 7 girls were named Sadi in 2025.
US births per 5-year period, 1990–present (SSA data).
A character in the fantasy series The Belgariad · The Belgariad
French physicist known as the father of thermodynamics
