aeon
/ˈiːɒn/
an indefinitely long period of time; an age
aeon in a sentence
“It seemed like aeons since they had last spoken.”
Origin of aeon
Greek aiōn age, lifetime, eternity
Related Words
millennium
a period of a thousand years
antiquity
the ancient past, especially before the Middle Ages
posterity
all future generations of people
zeitgeist
the defining spirit or mood of a particular period
fin de siècle
relating to the end of a century, especially the 19th century
halcyon
denoting a period of time in the past that was idyllically happy