The story
- Proto-Indo-European*upó
- Proto-Italic*supo
- Latinsub
- Latinsub-
- Englishsub-
- Proto-Indo-European*h₂ews-
- Proto-Indo-European*h₂ewsér
- Proto-Hellenic*auhḗr
- Ancient Greekᾱ̓ήρ (āḗr)
- Ancient Greekᾱ̓έρῐος (āérĭos)
- Latināerius
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Englishaerial
- English todaysubaerial
Etymology from Wiktionary, CC BY-SA 4.0.