High, noble, or exalted
Arynn is a modern spelling variant of Erin or Aran. It is often associated with the Gaelic word for Ireland, 'Eirinn', or the Hebrew name Aaron, meaning 'exalted' or 'mountain of strength'.
Less common today
Arynn isn't in the latest US Top 1000. It last peaked at #4,381 in 2016.
US births per 5-year period, 1990βpresent (SSA data).