Noble
Acelin is a diminutive form of the Germanic element 'adal', which signifies nobility. It was historically used as a masculine name in medieval France and England before falling into obscurity. Today, it is appreciated as a rare alternative to more common names like Asher or Aiden.
Less common today
Acelin isn't in the latest US Top 1000. It last peaked at #5,022 in 2012.
13th-century Dominican friar and papal envoy
US births per 5-year period, 1990βpresent (SSA data).