Saintly or holy
Santia is a feminine derivative of the Spanish and Latin word 'Santo' or 'Sanctus.' It is often used as a rare variant of Santiago or as a standalone name signifying holiness or devotion.
Less common today
Santia isn't in the latest US Top 1000. It last peaked at #6,685 in 1991.
US births per 5-year period, 1990βpresent (SSA data).