Where does “eternal” come from?

eternal (Middle English) comes from Old French eternal, from Latin aeternālis, from Latin aeternus, from Latin aevum, from Latin aevom, from Old Latin aivom, from Proto-Italic aiwom, from Proto-Indo-European h₂eyu- — vital force, life, age, eternity; day, morning.

eternal (Middle English): Eternal, permanent; having existed forever;...

Definitions

  1. Eternal, permanent; having existed forever;...

Ancestry of “eternal”, step by step

eternal traces back through two separate lines of ancestry.

via Old French eternal

StepLanguageWordMeaning
1Old Frencheternal
2Latinaeternāliseternal, everlasting, temporally infinite
3Latinaeternusabiding, lasting, permanent, perpetual; eternal,...
4Latinaevumtime as a single, unified, continuous and...
5LatinaevomArchaic form of aevum
6Old Latinaivomtime, lifetime; age
7Proto-Italicaiwomage
8Proto-Indo-Europeanh₂eyu-vitality; eternal; vital force, life, long life,...
9Proto-Indo-Europeanh₂ey-vital force, life, age, eternity; day, morning

via Middle French eternal

StepLanguageWordMeaning
1Middle Frencheternal

Words derived from “eternal

Every word from Proto-Indo-European h₂ey-Every word from Proto-Indo-European h₂eyu-Every word from Proto-Italic aiwom