Likely a variation of Arion, meaning melodious or immortal
Arieon is a modern creative spelling of the Greek name Arion. In Greek mythology, Arion was a divine immortal horse and also the name of a talented poet and musician saved by dolphins. It is often chosen today for its melodic sound and connection to the 'Ari' prefix.
Less common today
Arieon isn't in the latest US Top 1000. It last peaked at #5,360 in 1998.
A divine, immortal horse born to Demeter and Poseidon Β· Greek Mythology
A kitharode in ancient Greece and a dionysiac poet
US births per 5-year period, 1990βpresent (SSA data).