Modern invented name, likely a combination of Tray and Sean
Trasean is a contemporary American creation, likely formed by blending the prefix 'Tra-' (often found in names like Trayvon or Tracy) with the classic Irish name Sean. As a modern coinage, it does not have a singular historical etymology but follows 20th-century naming patterns of creating unique rhythmic identities.
Less common today
Trasean isn't in the latest US Top 1000. It last peaked at #8,012 in 2007.
US births per 5-year period, 1990βpresent (SSA data).