Definition of aeonian in English:

aeonian

(also aionian, eonian)

adjective

  • Of or relating to an aeon; lasting an aeon; eternal, everlasting.

Origin

Mid 17th century; earliest use found in Nathaniel Ingelo (d. 1683), author. From ancient Greek αἰώνιος eternal + -an.

Pronunciation:

aeonian

/iːˈəʊnɪən/