The story
- Proto-Indo-European*h₁éǵʰ
- Proto-Indo-European*h₁eǵʰs
- Proto-Hellenic*eks
- Ancient Greekἐκ (ek)
- Ancient Greekἔξω (éxō)
- Englishexo-
- Proto-Indo-European*me
- Proto-Indo-European*meth₂?
- Ancient Greekμετᾰ́ (metắ)
- Ancient Greekμετα- (meta-)
- Proto-Indo-European*gʷelH-
- Proto-Hellenic*gʷəlnō
- Ancient Greekβάλλω (bállō)
- Ancient Greekμεταβάλλω (metabállō)
- Ancient Greekμετᾰβολή (metăbolḗ)
- Englishmetabolism
- English todayexometabolism
From exo- + metabolism.
Etymology from Wiktionary, CC BY-SA 4.0.