Gracious or merciful
Tyannah is a modern American creation, likely formed by blending the popular prefix 'Ty-' with the classic name Hannah. As a variant of Hannah, it carries the Hebrew meaning of grace or favor, while the 'Ty' element adds a contemporary, rhythmic flair.
Less common today
Tyannah isn't in the latest US Top 1000. It last peaked at #8,528 in 2000.
US births per 5-year period, 1990βpresent (SSA data).