Firebrand or son of Ty
Tysun is a modern creative spelling of Tyson. It likely derives from the Old French word 'tison' meaning a firebrand or stick of wood, originally used as a nickname for a person with a fiery temperament. Alternatively, it is often interpreted in a modern context as 'son of Ty'.
Less common today
Tysun isn't in the latest US Top 1000. It last peaked at #7,933 in 2021.
US births per 5-year period, 1990βpresent (SSA data).