Most holy
Ariahna is a modern elaboration of the Greek name Ariadne. In Greek mythology, Ariadne was the daughter of King Minos who helped Theseus escape the Labyrinth. The name combines the Greek elements 'ari', an intensive prefix, and 'adnos', meaning holy.
Less common today
Ariahna isn't in the latest US Top 1000. It last peaked at #4,732 in 2008.
US births per 5-year period, 1990βpresent (SSA data).