eon.
eon; eternity
Meaning & usage
eon; eternity
eon, aeon
eon
a period of 1,000,000,000 years
eon
Where this word comes from
Borrowed from Latin aeon, from Ancient Greek αἰών (aiṓn, “age”).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.