Alive and well
A modern American creation, likely a variation of Aisha, an Arabic name meaning 'alive' or 'she who lives.' It gained popularity in the late 20th century as part of a trend of adding prefixes like 'Ty-' to established names.
Less common today
Tyiesha isn't in the latest US Top 1000. It last peaked at #2,109 in 1991.
US births per 5-year period, 1990βpresent (SSA data).