The story
- Ancient Greekἀγαθός (agathós)
- Proto-Indo-European*leǵ-
- Proto-Indo-European*lóǵos
- Proto-Hellenic*lógos
- Ancient Greekλόγος (lógos)
- English todayagathology
From Ancient Greek ἀγαθός (agathós, “good”) + English -ology.
Etymology from Wiktionary, CC BY-SA 4.0.