The story
- Proto-Indo-European*h₂ewg-
- Proto-Indo-European*h₂owg-éye-ti
- Proto-Italic*augejō
- Proto-Italic*augeō
- Latinaugeō
- Latinauctor
- Anglo-Normanautour
- Middle Englishauctour
- Englishauthor
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- English todayauthorial
Etymology from Wiktionary, CC BY-SA 4.0.