Fire or little fire
Adynn is a modern creative spelling of the Irish name Aidan. It is derived from the Gaelic name AodhΓ‘n, which is a diminutive of Aodh, the name of the Celtic god of sun and fire.
Less common today
Adynn isn't in the latest US Top 1000. It last peaked at #7,480 in 2012.
US births per 5-year period, 1990βpresent (SSA data).