Priceless or flourishing
Tonea is likely a modern American elaboration of Antonia or Tonya. As a derivative of the Roman clan name Antonius, it carries the meaning of 'priceless' or 'inestimable'. It may also be influenced by the Greek word 'anthos', meaning 'flower'.
Less common today
Tonea isn't in the latest US Top 1000. It last peaked at #8,639 in 1996.
US births per 5-year period, 1990βpresent (SSA data).