English word eternal comes from Proto-Indo-European *h₂eyu-, Latin aevom, Proto-Italic *aiwom (Age.), Old Latin aivom (Age. Time, lifetime.), Old Latin aeviternus
| Dictionary entry | Language | Definition |
|---|---|---|
| *h₂eyu- | Proto-Indo-European (ine) | |
| aevom | Latin (lat) | |
| *aiwom | Proto-Italic (itc-pro) | Age. |
| aivom | Old Latin (itc-ola) | Age. Time, lifetime. |
| aeviternus | Old Latin (itc-ola) | |
| aetatis | Latin (lat) | |
| aeternus | Latin (lat) | Eternal, endless. Immortal. Permanent, lasting, perpetual. |
| aeternalis | Late Latin (LL) | |
| eternal | Old French (842-ca. 1400) (fro) | |
| eternal | English (en) | (dated) Exceedingly great or bad; used as an intensifier.. (philosophy) existing outside time; as opposed to sempiternal, existing within time but everlastingly. Lasting forever; unending. |