名詞 eon:

1. the longest division of geological time
   同義詞：aeon
2. an immeasurably long period of time
   同義詞：aeon
3. (Gnosticism) a divine power or nature emanating from the Supreme Being and playing various roles in the operation of the universe
   同義詞：aeon

1. For eons, the pounding waves ate away at the shoreline.
   億萬年來，海浪拍打和侵蝕著海岸。

eon 也作 ae.on

n.（名詞）
An indefinitely long period of time; an age.
極長的時期；永世
The longest division of geologic time, containing two or more eras.
萬古：地質時期中最長的分段，包括兩個或兩個以上的代

來源：
Late Latin aeôn
后期拉丁語 aeôn
from Greek aiôn * see aiw-
源自 希臘語 aiôn *參見 aiw-