The story
- Proto-Indo-European*h₂ew
- Proto-Indo-European*tó-
- Proto-Hellenic*autós
- Proto-Indo-European*h₂ew
- Ancient Greekαὖ (aû)
- Ancient Greekτόν (tón)
- Ancient Greekαὐτός (autós)
- Ancient Greekαὐτο- (auto-)
- Englishauto-
- Englishaut-
- Proto-Indo-European*h₂ep
- Proto-Indo-European*h₂epó
- Proto-Hellenic*apó
- Ancient Greekᾰ̓πό (ăpó)
- Ancient Greekᾰ̓πο- (ăpo-)
- Englishapo-
- Ancient Greekμορφή (morphḗ)
- Englishapomorphy
- Englishautapomorphy
- English todayautapomorphic
From autapomorphy + -ic.
Etymology from Wiktionary, CC BY-SA 4.0.