Crown or princess
Tiaira is a modern American elaboration of the name Tiara, which refers to a jeweled crown or headband worn by royalty. It likely evolved as a creative spelling variant, blending the regal imagery of a tiara with the phonetic influence of names like Keaira or Briaira.
Less common today
Tiaira isn't in the latest US Top 1000. It last peaked at #2,831 in 1995.
US births per 5-year period, 1990βpresent (SSA data).